My biggest achievement of this week is that I can write the negative lookahead/lookbehind block in a regexp correctly from memory (most of the time) without checking the docs or previous code π«
I've scrolled down a few pages of the ATProto feed, and it looks like it's >90% expected content now.
It's not so much my doing as just the Discourse dying out, but I did add like 20 lines of exclude regexps, which removed ~10-15% of the posts from 1-7 Oct π and I have a few more things to try.