Funny enough, looks like I just got banned from White People Twitter for posting on this subreddit. I'm assuming the mods are going through this thread. Pathetic.

Subreddits use them to automatically ban users who have participated in other subreddits, regardless of what they actually said. For example, the moderators of /r/UofM could configure the bot to automatically ban anybody who has previously posted in /r/OhioState, regardless of the content of those posts.

Be sure to block /u/saferbot and /u/safestbot to avoid some of this behavior.