[mikeash]

Monitoring a public forum is absolutely legitimate. I've seen people grumble about the potential monitoring of twitter, but not really on basic principles of censorship, but rather just because it's going to be impractical, wasteful, etc.

What has most people upset is not the monitoring itself, but the use of the monitoring for such stupid things. If you set up a monitoring system that does nothing but hassle and punish a million false positives, that's no good.