If you do think that your post moved to off-Topic by mistake you can simply Pm to Moderator and ask him to review it. If you did posted a topic which is no relevant to that board usually will move to Off topic.

You can follow this post made by AverageGlabella

[GUIDE] Bitcointalk forum etiquette 

You can also use the search bar , this helps a lot. What you're posting may already findout by other's or there maybe solution already made.

At last if didn't get anything you may post it.