[icanhackit]

Nothing to do with WebRTC but it's (allegedly) a tactic that has been used by a US-based LLC known as Prenda via torrents:

http://arstechnica.com/tech-policy/2013/06/pirate-bay-data-s...

Earlier this week, Prenda faced a new and serious allegation: that it had actually put some pornography on BitTorrent itself, intending for it to be downloaded so that it could start a campaign of lawsuits and threat letters.

The Pirate Bay gave the data to TorrentFreak, which says that the IP address 75.72.88.156, which uploaded some porn files that Prenda has litigated over, "was previously used by someone with access to John Steele’s GoDaddy account."

http://arstechnica.com/tech-policy/2015/07/pirate-bay-founde...

[wlesieutre]

If we're talking about instances where "Courts usually believe their 'proof', no matter how bad it is," Prenda Law is not one I'd bring up.

http://arstechnica.com/tech-policy/2015/06/judge-finds-prend...

[anc84]

That is one (alleged) example. I was looking for proof of the widespread use of honeypots yAnonymous mentioned.