[doug1001]

a mod can close find support in the SO guidelines to close any question they wish.

a tightly defined, clearly written question with a single correct anwswer?

Rejected: RTFM

a question with more than one correct answer (but which almost certainly has a "best answer" which a community like SO is in the obvious best position to judge)?

Rejected: subjective; opinion-based

no axe to grind here--i used to participate in SO (50K rep, and one of the highest rep-to-post ratios)--i honestly just find it too difficult to navigate that narrow straight

[autokad]

I find SO is a great place to find answers, a really bad place to ask questions.

there are people (such as the comments above) get judgmental just because a post didn't use capitalization. sure, nobody is getting paid to answer them (well SO kinda is), but there is no reason to berate people for asking questions and missing minor details. just move on.

[user5994461]

Also, a really bad place to write answers.

[autokad]

why is that?

[user5994461]

Because the question is closed. Or it's open but you don't have enough reputation to answer to something that already has an answer.

Or you replied and your answer got deleted for being a duplicate. It was not a duplicate, it was the solution in python3 while the existing solution is python2.

edit: Just remember another one. That horrible time when I couldn't post the reply the OP was looking for, because the answer had to be at least 100 or 200 characters and the solution wasn't that long.