Feel free to use "Fear" its just a skill of SM. There is no restriction to use any skill. No other class do QQ about any classes skill but fear ? Many classes does stunlock or paralyze that is same as fear so using fear dont made player noob. Those are noob who make excuse of fear in battle. They arent real hardcore gamer.
I wish more people felt the same way as you do. As a cloth it's somewhat difficult to make a counter attempt on an assassin when their ambush procs a paralyze.
It depends, most of those skills on the right and floating box aren't bound by hotkeys. It's not too difficult and it makes PvP a lot more challenging than games where you just press 1, 2, 3, and 4.