I know there's several site lurkers that have dipped their toes into playing on Whitemane but haven't joined up with the guild yet, perhaps due to the same reasons you only lurk here. I just want to say to get your asses into the guild. It's far more relaxed in tone than the site and everyone is chill. You don't need to raid or even participate much if you don't want to, but the more the merrier.
I mean its not perfect, but it works. You just have to be careful in dungeons. Sometimes its better than trying to click/mouseover on a mob too. People get in the way, other mobs get in the way, etc... Its nice to have another method to target. If your tank is not an idiot and marks, then its not a problem either way. People say to use /assist, but I find this to be unreliablle as well since the tanks is usually cycling through packs to sunder keep aggro.
you never assist the tank. Everyone would just end up on different targets.
My problem is when a mob dies but autoshot decides to stay on when you tab, it's about 50/50, and tab targets the mobs just to the left of your group in strat and you quickly tab again before your 3 second swing timer goes off and pulls another group. This is all thanks to the problem Seb is mentioning where we can't click healthbars from 36 yards away.