There are a lot of meta-discussions, here and on meta.stackoverflow, that all agree that self-answers are okay but it is encouraged to wait a bit, to give others a chance to answer.
However, let's assume there was something that is interesting for me and I've performed some active research on it, and now want to share it through our site.
Asking the question and then waiting until someone else researches it as well feels exploitative and stupid, as basically I'm asking people to waste time and effort on research I have already performed. I mean, they can still perform it themselves if they feel my answer isn't satisfactory and post it, but otherwise asking them to do something which I have already done looks ridiculous.
On the other hand, immediately answering my own question feels like rep-whoring. I mean, I would certainly like to receive reputation if others find my question interesting or my answer useful, but answering it immediately gives me some unfair advantage for getting the first answer in - since no one else have seen it yet...
Ultimately the information is something I would like to see on the site so I'm leaning towards posting these question/answer pairs, though I would like to hear the community opinion first.
EDIT: when I say "research" I mean actually opening the game and experimenting with stuff, examining game files, etc.