One of the things in particular I felt that there should be more of a presence of (because it was basically nonexistent at the time) and I had some good knowledge of, was for Flash animations and games that had literally tens of millions of views and were practically pop culture for some of them.
But because there wasn't a dead paper news article I could easily cite, that was enough for it to be 'not notable' and eligible for long and stupid debates on whether or not there should be an article about it on this virtual Wikipedia that doesn't have a size limitation.
So stupid. Lost interest pretty quickly after that (I had contributed a few dozen minor edits before I started trying to submit those pages).
Now, of course, many years later, there's a whole bunch of them included on Wikipedia: https://en.wikipedia.org/wiki/Category:Flash_games But at the time the editors kept arguing to get them killed.
I also notice that a lot of the references that are included on these pages were ones that would be consider not-notable back then, because they are online web articles. Those weren't primary source enough for them at the time.
FWIW, Wikipedia also has this problem. Just spend half an hour going through some page histories and browsing some user pages, you'll find feuds and infighting all over the place. People with a profile saying "I stopped contributing because user XYZ essentially bullied me", yadda yadda.