Originally Posted by Nathan

Yes we can, it's called repeat infringer policy. And currently, it falls shut as soon as the user uploads (I think, would have to verify to be sure) 3 videos that get DMCAd. The account is then shutdown.

If you think this is not correct, do let me know of a user where you feel this is not the case, so I can investigate myself.

All of this obviously only applies to post March 1st 2010.