While I generally love more competition, Discord and Twitch as platforms for purchases makes me VERY apprehensive.
Their stance on (and corporate culture involving) SJW things has gone beyond the "reasonable" (Crazy by even moderate leftists / Libertarian standards) and into places like, "Banning a discord server because of adult themed channels" which happened in the case of FFXIV-Subreddit discord server. From the subreddit admins mouth, they basically had a NSFW channel for all "Adult Themed Art" and discord admins basically said, "Nope, no nudity at all" and gave the discord server admins a sort time frame to nuke the content, they didn't respond because of some reason (I THINK it was late at night) and the discord admin team took that as non-compliance and nuked the server.
It isn't like this is a one time thing either, Discord and Twitch monitor ALL things said on their platforms, some for good reason (threats) and others for "Muh Safe Space!" the issue comes with how they choose to enforce said "SJW" topics on a case by case basis skewed more towards the virtues of California than a general rule-set applied to all equally.
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Steam may have it's issues but I am much more confident in spending money on their platform since they don't have a track-record of banning anyone but cheaters typically.
Even if i get banned from twotch / discord and retain access to my games, I don't want to support a business model with such a shaky foundation in terms of community ethics policing.