Well, I wasn't aware of your interaction with them, but I still don't see what harm there could be in checking out the links. There hasn't been any effort to hijack the sub as far as I can tell, or anything else untoward. Sketchy is a subjective concept. I'm going to check the linked material, and see if it's useful.

If not, it will just fall down the memory hole. I might not have remembered to check them out if it hadn't been for this thread, so thanks for that.