It the admins on one server are assholes, they don't have the power to ruin it for everyone.
Exactly. One of the big issues with the r-site. There's only one community for any one topic and there are more users (and content) than they could possibly use. Ever tried posting to /r/ShowerThoughts? It's virtually impossible to come up with a topic that makes it through the filter. And it won't change because deleting 90% of submissions still leaves more than enough content to fill the page. It's easier for mods to just delete content en masse and ban a user than even engage in a conversation with them.
(I'm not picking on the mods on /r/ShowerThoughts, I've never interacted with them. I'm just using the sub as an example where the community is so big that an individual user is just an annoying gnat in the grand scheme of things).