Promote answer to a new topic
quite often happen, that user answer to topic with his own problem, own idea - but these ideas may be quite far away to original topic. Good practice is to keep topics separated and do not mix them.
Current solution is to ask user to post his answer as new separate topic and when he do it, delete his first answer.
New solution should be to allows moderators to "promote answer to topic", so it remove users answer from existing topic and create a new topic from it.
If this idea already exists here, please merge them as I wasn't able to find it, even it's quite common task.