As per title, I have for example Diaper blocked but yet I have still been getting it the last couple of weeks despite having no problem with it before.

There's a maintenance because of serious shit happening on the server today, so stuff as blacklist and tags doesn't work as it should be.

that'd explain today, but not the last few weeks; my BL is working fine at the moment

Yeah, but I think isn't the best day to talk about those problems xD. Let's wait a bit and see if the problem is still there.