In most cases we generally don't encourage this (though we don't discourage it either - and I'm speaking from the standpoint of experience in the community).

It is okay so long as there is a good reason for asking though, such as if the answer needs to get more notice, or for instance if the answer is more detailed than the accepted answer.

In most cases we generally don't encourage this (though we don't discourage it either - and I'm speaking from the standpoint of experience in the community).

It is okay so long as there is a good reason for asking though, such as if the question needs to get more notice, or if the question is well worth the vote, such as in the case of "canonical" questions.