I think you know the system pretty well. In order to offer a bounty, you'll have to earn enough rep first.
The question you allude to was only asked yesterday. Some regulars may not have even seen it yet. I think you are painting this picture to be more dire than it really is.
You might also try editing the question to make it more clear or interesting to the community.
As for that last part: asking on ELU, which is "worse" for some reason. If the question is on a topic that would interest serious linguists and those who study the language at an advanced level, it should go to ELU. If it is more of an elementary question caused primarily by unfamiliarity with English, then it is better here.
50 or so "unanswered" questions out of over 3000 cast is a pretty low rate. Moreover, some of these questions do have helpful answers (like this one), only these answers are in the form of comments to the O.P., as opposed to full-fledged answers. But the users are still being helped.