I have the same issue. Think of my site as WeTransfer, but instead of only files, you can also use it as a link shortener or pastebin. Abuse works the same as on every other site or service: I do spot checks and users can report content. This was fine until uBlock Origin decided the website was malicious, per one of the lists that is default-enabled for everyone

That list doesn't have a clear way to get off of it. I would be happy to give them the heads up that their users are complaining about a website being broken, but there is no such thing, neither for users nor for me. In looking around, there's many "sources" that allegedly independently decided around the same day that my site needs to not work anymore, so now there's a dozen parties I need to talk to and more popping up the further you look. Netcraft started sending complaints to the registrar (which got the whole domain put on hold), some other list said they sent abuse to the IP space owner (my ISP), public resolvers have started delisting the domain (pretending "there is no such domain" by returning NXDOMAIN), as well as the mentioned adblockers

There's only one person who hasn't been contacted: the owner. I could actually do something about the abusive content...

It's like the intended path is that users start to complaint "your site doesn't work" (works for me, wdym?) and you need to figure out what software is it they're using, what DNS resolver they use, what antivirus, what browser, if a DOH provider is enabled... to find out who it might be that's breaking the site. People don't know how many blocklists they're using, and the blocklists don't give a shit if you're not a brand name they recognize. That's the only difference between my site and a place like Github: if I report "github.com hosts malware", nobody thinks "oh, we need to nuke that malicious site asap!"

I'd broaden the submitted post to say that it's not only Google with too much power, but these blocklists have no notification mechanism or general recourse method. It's a whack-a-mole situation which, as an open source site with no profit model (intentionally so), I will never win. Big tech is what wins. Idk if these lists do a trademark registration check or how they decide who's okay and who's not, but I suspect it's simply a brand name thing and your reviewer needs to know you

> Luckily, Google provided me with a helpful list of the offending sites

Google is doing better than most others with that feature. Most "intelligence providers", which other blocklists like e.g. Quad9 uses, are secretive about why they're listing you, or never even respond at all