That is what happened to me.. the bots banned me within a minute for a metaphorically based - though salty - post. 14 years.
Thing is, I noticed a change in the algorithm not too long after the IPO since my homepage started in with more rage-bait subs and many were ones I'd not visited or even heard of. It was subtle but also kinda disheartening. I decided to manually delete all of what I could and as I was going through the posts I noticed that the art subs I used to go to had all but disappeared on my home page.
I used to go to photoshopbattles all the time and as I was scrolling my home pages, it was nowhere to be seen. Nor was AppleHelp, VintageApple or MacPro..