I agree Tested could have more content and more interactions on the forums. I find that a lot of the content is very similar in nature and could expand out. I love the maker space videos but would like to see more videos dedicated to specific skills or practices. I think this site could become an even better resource to the maker community and the education community as more maker driven practices are being adopted by schools.
I joined Premium expecting to find a great community, loads of extra videos and articles of things being tested (you know, because you're Tested.com) lots of behind the scenes stuff, special Q and A's or something. What I found was a 7" Single, a very broken forum (from a tech site!!??), a complete lack of community and 500 videos of people building lego. I'm glad to have supported tested this once as my small way of saying thank you for all the previous stuff you have given out for free which I have really enjoyed, but I won't be renewing, there is literally no point. Since you pretty much don't test things anymore maybe re-brand to "3D Printing, VR, Cosplay and building lego.com"? Sorry if that's sounds harsh, but that's pretty much what you are now.
Whatever direction you decide to take Tested, you really need to replace Will with someone to breath some life back into your shows. I know he's still a guest often but he left a hell of a big hole when he left you've never managed to fill. Not only was he often the most knowledgeable guy on a show but he was funny (and you're shows are so terribly dry now).
I think to some extent there isn't a push for the to fix the forums because seemingly no one uses them. It's a catch 22. They could spend the time and budget to fix the forums in the hope that a community builds from it, or they could spend that making more videos etc. If I was them, sure I would figure out a way to keep the spam off this more efficiently, but I wouldn't move to fix much when there are a couple of posts a week at this point. It just doesn't make sense. If you want better forums, use the forums more. I think we need to grow the community to the point that it is a community they should care about.
In terms of content I'm sure losing Frank put a bit of a wrench into some plans they had as well.