I got banned from a default sub in reddit for the reason "I didn't see that in the article". I replied to the mods with an explanation and a direct quote from teh article, and... nothing. They perma-banned me, and then blocked my account from messaging.

My comment was correct,

but even if it wasn't, it wasn't against the rules,

and even it if was against the rules, their own guidelines say you get a warning first,

and even then, the sitewide rules say that mods should hear appeals. But nah, forget all that. I'm just gone.