There's a new D&D survey from WotC and it asks, among the basic questions, which editions you've played in the last 12 months and what other games you play.
So yes, it's an opportunity to let them get some information on old-school gaming.
Also, some folks are getting additional questions with an NDA attached. I'm not sure how enforceable that NDA would be, but there has been some pushback.
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