Well, if you don't want to wait for Whatbox to do their thing, or you have a slightly different setup, I promised I'd explain how mine works. Maybe no one will find it useful, maybe someone will. Either way, I've gotten plenty of help here so I'll give back if I can.
First, I pay for a Whatbox seedbox, $25 a month for the Flex2 with 1.35TB of HD space. I also pay $10 a month for a 1TB Dropbox account that I use to transfer everything my seedbox downloads to my home computer. You could get by with less on both (including the free version of Dropbox), you will just obviously be much more limited on space and the maximum size of a torrent.
I also have a BTN account, so it will be specific to using that because I know a lot here do also. If you don't, you could modify it to use something else, as Sonarr works with several other trackers as well, but I won't go into those because I didn't use them.
First thing I did was set up Dropbox on my Whatbox. There is a fabulous wiki on how to do it on their site here:
Dropbox WhatboxI did not use exactly the same directory names and locations that they did, but you can do whatever you want in that regard. I will say that if you have problems you are much better off asking the Whatbox staff than me, because I did it well over a year ago and don't remember wtf I did, and they are awesome at helping. There's a decent chance they'll do the whole fucking thing for you (don't quote me on that though).
One of the first things you should do with your Dropbox, assuming you use it for more than just transferring torrents, is to exclude all directories and files except for the torrent upload and download directories. Otherwise your seedbox will get all of your camera uploads, documents, etc. If you want that as an extra layer of security for your files, then go for it, but it counts towards space and bandwidth so you should probably limit what goes there.
It doesn't say it in that tutorial, but you can use * when excluding stuff. It can be a little touchy, but if you keep your Dropbox directories fairly clean it is easy. If you have a lot of directories to exclude, the fastest way is to exclude them all and then add back in the ones you want. If you only have a couple, excluding them one by one might be easier.
To exclude everything, from within your SSH client (I use Kitty), type ~/dropbox.py exclude add /home/<username>/Dropbox/*
(I'm pretty sure the * will work like that, might have to be *.*)
To add a directory back in, use ~/dropbox.py exclude remove /home/<username>/Dropbox/YourDirectoryNameHere
Please note, it has a terrible time handling spaces in directory names, so your best bet is to use no spaces for the two directories you want to use. You can replace spaces with a backslash and space "\ " I believe, but it is safer to just omit any spaces, particularly if you ever need to mess with it later and can't remember what the substitution is.
Obviously replace username with the name of your account. It is slightly possible that your file structure is a little different depending upon where you put Dropbox or how your seedbox is set up. I know that somewhere in the middle of my seedbox history they changed it all around. You can find the proper pathways if you use the Whatbox "Files" section from their management page. Remember to remove from the exclusion list both the directory you will use for placing .torrent files and the download directory.
I won't go over setting up Dropbox on your home computer.
Next, go into your seedbox and, assuming you are using rTorrent, find the settings and select Autotools.
Enter in the directories that you chose for your Dropbox folders in the appropriate boxes. Note: a_skeleton_03's page looks slightly different, and he got it to work with the "Label" button above, but it wouldn't work for me, so I'm going to just stick with what worked. Maybe use a mix of mine and his if you have to. All it means doing it my way is that everything gets dumped into the same directory, but Sonarr is smart enough to only touch TV episodes, and I'm assuming CouchPotato (which I am not using) would be the same with movies. I've downloaded movies, books, porn, and whatever else you can think of, and Sonarr has left it alone. You don't have to use the same directory names I did, obviously, and mine are more complicated than you need because of reasons I used to have a need for and am too lazy to change.
Please note that I use the Copy function instead of moving or hardlinking. This is because the moment I remove it from the Dropbox folder at home, it would remove it on the seedbox as well (same with renaming), which I don't want because I need to keep seeding it for awhile. This is where the extra space on your seedbox is nice, because until Sonarr removes episodes (and you remove your porn) you'll be taking up double the space.
Once Autotools is set up, you might want to test it out by saving a .torrent file to your torrent directory. It should start automatically (give it 5 minutes or so, rTorrent doesn't poll the watched directory continuously), and then when it is done it will move it to your finished torrent folder AND copy it to your Dropbox folder. Note that if it is a huge file you have to wait for the usually fairly slow seedbox to copy a huge file on its (likely shared) hard drive, and then wait for it to upload that huge file to the Dropbox servers. If you are seeding a bunch of stuff at max upload speed, this could take awhile (and will count against your upload traffic, another reason to upgrade to a decent seedbox plan). Once it is uploaded it should immediately start downloading to your home computer. The nice thing about Dropbox is that you don't actually see the file in the folder until it is totally complete, so Sonarr or any other programs won't keep trying to grab it when it is only partially downloaded.
Assuming you have Dropbox working perfectly, all we need to do now is set up Sonarr. I'll do that in the next post due to attachment limitations, and to break it up a little.