[supercanuck]

If they ban users, those users don't get to vote.

[52-6F-62]

But they don't ban users for their opinions. They have clearly stated rules about civility in discussion — to my knowledge, those rules are the most common purpose for banning in that subreddit. That and spam.

edit: It would actually be kind of interesting to pull those kinds of statistics and display them — for various subreddits.