They did let iSEC partners review their source code. So, it is not nothing. But I agree that it would be far more trustable (and popular) if Bittorrent Sync we

They did let iSEC partners review their source code. So, it is not nothing. But I agree that it would be far more trustable (and popular) if Bittorrent Sync were open source. And there is still a profit model with an open source BTSync: let people (who need it) get a tracker, relay server, and always-on (read-only encrypted) peer subscription.