Yes, it's worth the effort to tighten whatever quality mechanisms are in place.
Period.
Yes, we'll probably filter out some otherwise decent questions that way. That's a price I'm willing to pay to filter out crap questions like "how do I build my own beginner's linux distro?" Questions like that make me want to open another meta question to identify the strongest but just-this-side-of-OK-for-Stack-Exchange word to describe it with.
"Removing" my answer as the researchthe research doesn't indicate it would provide any benefit.