Banned for Voting Incorrectly?

Was recently banned from a whole bunch of DB0 communities for, as best as I can gather, downvoting once when I viewed by All (potentially accidentally while scrolling).

Important notes:

I don't use scripts.
I don't mass-downvote Communities. If I see a post I generally don't like when browsing All, I may downvote one post, block the Community and move on.
Some of the communities I was banned from don't have any posts in them so I wouldn't have been able to downvote anything.
Of all of these Communities, in my history I downvoted one post in one of them. Voting in this manner is not vote manipulation. It's quite literally a feature of the platform and as a mod of another Community, I would consider it pretty good etiquette.
One of my bans reads "Appeal Granted, not a brigading member" but I'm still banned.
I don't troll.

WTF is going on here?

EDIT - Updated Info from the conversation below: In the initial image, you can see two "ban waves."

The 10 bans three months ago stem from a single downvote in one Community. It was @Draconic_NEO@lemmy.dbzer0.com See here: https://discuss.tchncs.de/post/34853477

I was called out by name for a single downvote and culled from a score of Communities I did not participate in by them.

The other bans from two months ago are from four total downvotes over a 10-month timeframe in one Community.

I have also stated in this thread that I don't have issues with AI-gen images, but there are shoddy ones and well-done ones.