i started using the internet in the late 2000’s and still remember when you search for something most of the times it would return with a forum post … now its just random websites … if you ever need real and concise answer you have to add site:reddit.com at every search and since discord or twitter are not crawlable by these search crawlers they are not mentioned . Where did all those forums went…are there still active forums ?
Depends on the subject, though they are definitely nowhere near as popular nor used anywhere near as much as in the past. Niche groups can probably be found, but I wouldn’t know too much about where to look since I usually don’t go to them.
Closest I go to is Steam Underground and that is just for certain files.