Yeah, seems to me like your crowd sort of... shot their load early on (no pun), and are now burnt out for a while. I also have a theory that, people are now finally spending big money on stuff that they put off for years. ie: car sales have been huge. So the hobby type stuff might be taking a back seat for a while.
I don't know where your video was hosted, but try a youtube channel. If you make up some good content, that seems to work really well for people.
But overall I think your site is good. Makes me realize mine is painfully old actually.