ficler1977 :
1. at first stage I have admitted a misclick and I have written sorry.
"Select...unselect...if it is not your [ leave that button alone."
2. Now I have to ask: If I enter the topic and before posting my answer I can see someone has already got a good solution would you suggest me to "vote up" or "pick as solution"? As I don't want to upset anyone in future.
3. I would like to know whether moderator would suggest me to do the same.
Once again thanks for pointing this out and again, sorry.
For the "Solution", the rules are simple:
1. If the thread originator has chosen an answer you leave it alone, period.
2. If you come across an obviously abandoned thread (2 or more months old) with no chosen answer you may choose one.
3. If you come across a thread with an answer that is obviously wrong, or a better one exists, you may change it, unless the answer was chosen by the thread originator, in which case you abide by rule #1.
4. You do not choose/remove an answer in an active thread unless you are the thread originator.
5. Do not use multiple accounts to award best answers to one another. You will be permanently banned for this.