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Nope.

It'll work with anything that will give you a direct download link. Since the business model of file sharing sites depend on making you look at ads before letting you download the file, they don't have any reason to do that.

Most of those services give you a link that only resolves to a direct download once you've looked at ads and filled out a captcha and even then only if you haven't hit some download limit (or, alternatively, if you're signed in as a paying customer). I don't see how it could work with those.

Yeah, the captcha-ed file hosting sites popular in the segment they're after are a major problem.

Especially if the "web seed" is hosted by burnbit, I think people will end up using this with private Dropbox URLs instead.

I'd guess we solve the normal way - googling the filename with '+filetype:torrent'?

It probably does not, but probably could: JDownloader (http://jdownloader.org/home/index?s=lng_en) claims allow access to the content on those type sites.

However, having said that, there are probably clear legal lines between merely making a torrent file for any given content and actively circumventing interstitials. IANAL.