I follow the forums pretty closely as well, and until about a week ago I hadn't really seen anything get deleted other than spam, a very few controversial threads, and threads that should obviously have been deleted. However, over the past week or so, it seems like the threads I have been posting in are getting deleted within a few hours to a day tops. The only common theme I have noticed is that they all have had to do with the NSA, other than the one on phone encryption and anonymity, which only had to do with the NSA in an abstract and never explicitly mentioned way. Given that the recently deleted posts were not spam, that they were not at all controversial, and that they actually had some good info and debate going on in them, I don't see that they should have obviously been deleted, and it just leaves me hoping for clarification of the matter. I had a few dozen fairly large posts in all of the threads combined, and if I know that there is some 'flag' that is getting these threads deleted, I will stop putting the effort forth to post in them. For now I can only speculate that they were deleted accidentally, perhaps by a mod trying to move them, or dropped by a software bug, or perhaps were deleted because they related to the NSA for some reason?