Ask HN: What communities have you joined aside Hacker News?

For non-pedantic, non-esoteric, non-stickler, relevant, non-US-specific practical solutions/answers/discussions from normal people (usually in that specific geographic or topic subreddit).

MeFi:

It's a cosy little place. Even though it's also mostly centred around the USA (it's natural as that's the demographic it seems), it's not bad. Wanted conversations where others were not trolling, or giving knee-jerk reactions, and responses full of sense of self-entitlement and ones that basically just said "you are doing it wrong!". I also wanted to have a place where you are visibly anonymous but not really anonymous when you try to get away with something nasty.

SA:

It was a mistake.