Guys, the process is entirely automated by YT, where the IP owner doesn't have to find violations and tell YT; they simply provide YT with "their" content (which legally IS theirs). WTBTS is no different from any other content owner here... Fair use claim is a legal DEFENSE, not a RIGHT, since only a judge and jury can determine if a particular use IS fair.
Btw, www.chillingeffects.org is a website for the Electronic Frontier Foundation (Lawrence Lessig), a Bay Area group which protects freedom of speech issues on the Internet. It would be good to send those takedowns to shame the WTBTS, although you'd probably have to actually engage with them and fight it to have something more impressive than just an automated takedown notice.
Someone said something about WT abusing DMCA: far from it. They ARE following DMCA procedure, as is YT. WT may be hoping no one knows to file a counter-notice, but that's not illegal: that's just how DMCA works....