As an active member of one of the more unusual stacks, I am well aware that each stack has its own community and to an extent its own norms. However, when it comes to the network-wide guidance on answering one's own question:
Can I answer my own question?
Yes! Stack Exchange has always explicitly encouraged users to answer their own questions. If you have a question that you already know the answer to, and you would like to document that knowledge in public so that others (including yourself) can find it later, it's perfectly okay to ask and answer your own question on a Stack Exchange site.
it seems to be community consensus here that this is perfectly acceptable, and I agree completely with the conclusion:
... if someone with the same problem visits the question before it gets another answer, I think he will be glad to find an imperfect solution, instead of no solution at all.
I am therefore puzzled as to why not one but two high-rep users thought that my answer to my own question about Cyrillic on Ubuntu Precise should be moved to be part of the question. I think most of us are familiar with the problem referred to in XKCD 979:
Someone who finds the page by a Google search will see "0 answers" and isn't likely to read a long question to see whether it has any clues. I posted the self-answered question after spending 8 hours to get my document to compile in the hope that it would save someone else 7 of those hours, but moving the answer to the question seems to frustrate that hope.
Why should the answer not stand as an answer, at least until someone has a better one?