There are reasonable measures that can be taken to make it less scammy especially when results have real consequences (winners get rewards or something) . We've discussed this on the spec itself. 

I do think this is the right spec to build on and we can actually plug the holes that we already know about as usage grows. 

I really like chachi.chat 's implementation. I'm not sure if they've modified the relay for this implementation as recommended on the nip but they seem like the right app to incorporate that and have high stakes polls within communities 😛