I just started to learn atomic chess and played e5 after e4 then Qh5! and I didn't find a way to hold and resigned, and got warned for losing on purpose...... why?
I didn't know that trap. Is it forbidden to resign dead lost games if it's early in the game?

As long as you're not doing it on purpose, you have nothing to worry about.

You can't post in the forums yet. Play some games!