I find Wikipedia creepy. I once went on there and corrected some political bias and which ever power-that-be was on duty tracked me down by my IP and sent me on-screen messages lecturing me.
I was then banned or locked out from making changes -- forever.
There's also been a very large movement to show an islamic point of view on nearly any subject. Or at least, what they'd like the islamic pov to be.
Good luck trying to correct or remove that noise as well.
That's really creepy.
Sounds like Orwell's 1984.
If you have a static IP (like most cable broadband users have), use the public proxy for these sites so you can't be tracked and banned.
If you have a dynamic IP (like most DSL users have, unless specifically requesting static), then it's unlikely that they can track you and ban permanently, as your IP changes regularly depending on your disconnect/reconnect timeout period is.