this isn't necessarily a bug but it could indicate something's wrong so it's going in the bug category. today when i logged in i got a nice little pop-up from avast telling me that ads.e621.net was blocked because of "URL:Blacklist". i can browse the site as normal, but now i'm not seeing ads. this is great for me but probably not great for the site that is supported mostly by ads. what i believe this specific reason means is that the ad server was manually added to a blacklist instead of being automatically blocked after behavioral analysis (though it would not particularly shock me if avast has a brand new crapshoot ai that is adding sites to the global blacklist by throwing darts at them). if the person responsible for the ads is reading this, it's probably worth making sure something malicious didn't slip through the cracks, and if not i'm sure there's a way to contact avast to get it removed from the blacklist and start raking in that sweet sweet yiff money again.