I just laugh at them over vox, or a simple lol would do. Even funnier is the people who says:
"Help me! There's 5 of them" - Ok...where? - "Behind me!" -_-
Enemy plane explodes - "I got him" - Duh? (only exception are planes that are missing tails/wings, so everyone knows not to go after that con, I do that all the time)
I remember having one guy who said copy and Roger after every single vox transmission. Funny at first, just annoying after a minute. Squelch.