This is exactly what I need to get my arse to the bench, but have a few questions:
I'd probably be in either Sci-Fi or Figure, leaning towards figure. I hear what you say regarding landscaping, but I'd most likely be building a Moebius kit, like Dracula that has a sizable base (floor, walls, door). Is that too dioramaish, even if it's in the box? And when you say no landscaping, does that mean no weathering?
The other thing is I fully understand the appeal of surprise at the end, but at the same token, WIP is what attracts eyes to the site. I like to share my work and watch others, I'd feel like I'd be left out of the conversation if I was building and couldn't post it, especially for 6 months. I hear you regarding contact with team members, etc, but sending pics back and forth and keeping up separate conversations may get tired quick. The beauty about MA is the ability to check in whenever you want or can, I'd feel like I'd be leaving someone hanging if I didn't respond right away and then it becomes yet another responsibility. Honestly, at the end of the day I get so little done, not posting what I do build for your guys to help/comment on would probably keep me from joining in purely for the ability to post.
Don't get me wrong, it's a fantastic idea of categories and heats based on popular opinion and perfect as a friendly build, sort of CTA with a kick,. It has to be friendly since it's so broad in scope, if I build a styrene Frankenstein but someone else builds a beautiful garage kit, I myself would choose the most impressive, which would likely be the better kit. Just as if someone builds the fully Monty Yamato and someone else a Revell PT109, you kinda have to expect which would be more impressive in the end. Not to take away from the skill of any of those, but it's not like it's for a cash prize or something.