It is prohibited to send a tell to a creator who is not on the who list unless it is a bug-related emergency.
This means it must be: a) bug-related - due to a bug, not something you got yourself into. b) an emergency - could result in permadeath, or you are trapped
Coding requires careful attention and deep thought. When you interrupt creators, that process is disturbed and it limits their ability to get things done.
See "help contacting creators" for acceptable methods of getting their attention.