Pretty much every "crowdfunding" "opportunity" = scam
Especially in the Bitcoin world.
But this is more like traditional crowd funding in return for perks rather than stupid investment stuff that promises returns that never materialise.
I'm looking for some way of funding bitcoin for a new computer to develop a web site that has so far created. I could send postcards or small gifts from Ukraine as a reward, or offer advertising space on the site.
https://bitcointalk.org/index.php?board=12.0This is currently the closest section to that. I don't know if it has rules about seeking crowd funding.