I'm not sure if this is caused by age generation differences, but I find it extremely rude that when I greet another player by name, the player cannot be bothered to return my greeting.
Greetings like heyas, hi all, and hi guys, just doesn't cut it for me.
If my worst enemy greeted me with "hello Dee", I would certainly reply, "hey there <playername>".
In the future, I will not be greeting many players on Istaria. Why should I bother when they cannot take a second to respond to a polite greeting?