From the FAQ:
You should only ask practical, answerable questions based on actual problems that you face. Chatty, open-ended questions diminish the usefulness of our site and push other questions off the front page.
Your questions should be reasonably scoped. If you can imagine an entire book that answers your question, you’re asking too much.
If your motivation for asking the question is “I would like to participate in a discussion about ______”, then you should not be asking here. However, if your motivation is “I would like others to explain ______ to me”, then you are probably OK. (Discussions are of course welcome in our real time web chat.)
That part of the FAQ is common for all Stack Exchange sites, unfortunately your question is too open ended to fit the Q&A philosophy and format. We can only guess when it comes to popularity alone, and that simply doesn't work for the site. It might be a great question to ask in The Whiteboard, our chat room. I know most of the times it looks abandoned, but usually not constructive questions are excellent conversation starters.
As for the C question, personally I'm on the fence, it does have somewhat of a technical core, and can be discussed on technical terms (and indeed it has, for the most part), but it's also very broad and has all the signs of a not constructive question:
- Language comparison elements (and that rarely ends well),
- Couple of pointless answers,
- Couple of extremely pointless answers (since deleted).
But it has survived without a single close vote or flag, and I see little point in mod closing it now that it's run its circle. If it starts attracting pointless answers and / or close votes it might be a whole different story, but for now I'm letting it sleep.
Lastly I'd like to point out that it makes a lot more sense to concentrate on your own question's merits when contesting a closure than pointing us to other similar questions. It might just be the case that the similar questions escaped our attention, and the only thing you'll achieve is getting them closed as well. The community moderates itself vigorously, but some questions simply find their way in through the cracks. Two wrong posts don't make a right.