That can be frustrating too, depending on the atmosphere of the lobby. Better than getting kicked, though.
How could anyone think its a sign of disrespect? Its not a big deal. I do it to everyone. If you dont want them to do it win the round
You know what's interesting, if I'm the one person in a lobby that isn't corpse beating or taunting, people will do it to me even more than others who are doing it as well.