Originally Posted by
QT_Melon
No. People have said in parties before "we failed the DPS check" it's never been a problem.
Specifically berating a player with a third party tool IS however frowned upon, and punishable.
Telling a player that he/she may want to brush up on his/her rotation and that Stone Sea Sky/Lawns may be a good starting point, and telling them you only want to help them improve is not harassment. It never has been.
The key things are harassment and third party tools.
If you want players to do their best, simply DO YOUR best to relay that information in a non harassing way.