If one donates to Soulseek( on their official website a certain amount), they get privileges. If you have privileges, then your downloads will be queued ahead of other users (basically you side step a long queue for downloading).
I use Nicotine, and when I open the client, it shows for a couple of seconds at the bottom/tray No active Soulseek privileges before vanishing. That's the only clue.
In practise, my downloads usually go through normally. The 5 days I had privileges I honestly didn't notice much difference. Some users have an automated script that crawls one's folder whenever you download from them, so as long as one has decent amount of shares, it's alright. (I only have shared 40 odd gigs but it's decent enough).
Not a perma ban but still.
Back when I used to be on Reddit much, I got auto banned from r/latestagecapitalism for having too much karma on certain subreddit they disliked. They weren't necessarily political in nature (I think I only frequented couple of political subs then and they were non US in nature) but apparently the concept of not breaking any rules on your sub but still being banned just because I participate in some place they dislike was dubious.
Not related, but I think I was very active on reddit from 2016-2021. I had gone through couple of user IDs then (stupidly forgotten the 2FA mechanism for both and never backed the recovery code :p) and had a decent curated feed. I still sporadically open it but hardly participate / post. The only thing worth keeping me there is old Reddit and RES which makes keyboard navigation a breeze.