"Other "questions" were so poor, I wonder if they really would have got answers here. I doubt we'd miss those."

I think the issue is more would perl miss these people, rather than what "we'd" miss. If they posted here, and the question was poor, they'd likely get a reply asking for more information, linking to How do I post a question effectively?. If the concern is that people may walk away from Perl because they have a hard time getting started, this could be considered a valid one. Since snack overflow has positioned itself well with search engines it's often peoples 'go to', the person asking the question has a good chance of finding an existing similar question, perhaps they didn't understand the answer, or in actual fact, what the problem is. The gamification of moderation and reputation on the site is fairly toxic IMHO. I'm told the tendency for moderation or closing of questions before anyone has had a chance to reply is a big problem for new comers. Nobody here really cares about XP/post reputation (with the possible exception of the sites integrated moderation tooling), in fact the people who make the most noise about XP/down/up voting are demonstrably the worst contributors to the site. On snack overflow, I've been shown threads where people threaten to downvote unless something is altered, or offer to remove downvotes should someone change an aspect of their reply. Such behaviour is bad for all concerned.

Update: In short, many of the problems in life are caused by communication issues, many people aren't great at asking questions. If people don't engage with those asking poor questions they are unlikely to improve, since they probably are unaware that it's a problem.