this in general accurate but I would warn people to have a thick skin in there because there are some seriously toxic people in there (TRW3W or whatever his/her name that was fairly knowledgeable but hung out in there I think purely to assert his/her superiority).

I still recognize that name/handle and I haven't logged into ##math for ~10 years, so I can certainly corroborate what you're saying.

This is good advice for existing at all in the world. They're not toxic except in high doses, like all sorts of people.