I don't think the chess.com staff are in the habit of scamming their own members. (Even if they were, you don't give any information they could actually use with malicious intent!)
survey contest on chess.com

we said we would give it up to two weeks to announce (we want to give everyone a chance to participate).

Maybe they'll give it to the people who go out of their way to insult chess.com on every aspect of their future plans and aspirations.

I hope my 15.000 words essay with formulas, graphics, short history, future history, pictures, interviews and theories should be enough.
I took few days of vacation, now I'm going to answer to question no. 2
i see this survey contest on chess.com and the winner gets 3 FREE YEARS DIAMOND membership. they want new ideas and stuff. is this a scam?, i hope not, but still 3 years of diamond membership is like 300 bucks straight up. i took it. well done chess.com