SE provides the feature of answering your own question. I often see this when someone made something sophisticated, but useful and wants to share his/her knowledge on, e.g., TEX.SE or similar.
In contrast here, there is typically no definite answer (but some preferable answers to accept, of course). Many questions here come from experience and almost every OP has made up his/her mind thinking about the question asked (but wants to see a maybe better argumentation or seeks for references, etc.). For example, on some questions I was asking here, I have already tried some solution, but was faced with mixed feelings about it or I am not sure if the solution is that good. Also, I am hesitating in answering my own question thinking in that context that would be impolite.
What do you think about this issue or how should we handle this in the future?