Pfftt...you camp the main spawn exit. That's shooting fish in a barrel. People have no idea you are there until they get gibbified. The lucky ones get a warning when they see some other poor chat get the business. It's purely random that they spawn there and not the alternate spawn room. In fact, the alt spawn has two exits so at least there they would have a 50/50 chance. Nope, you pick the main spawn with one exit. That's like school in the summertime...no class.
Compare that to my idling the grate. People can see me and my stickies before it's too late. There are multiple ways to avoid me as well as multiple ways to come up behind me. They can also stand outside my obvious trap and attack with ranged weapons. It's nigh a miracle I get any kills at all.
Your way is like taking candy from a baby after you gave said baby some knockout drops. My way...well, you die from my camp and you've got no one to blame but yourself.