I'm going to add my name to the "no limit" soldiers. I don't want a limit on jumping, and I'm fairly convinced most people who have issues with it are nitpicking specific situations. I've played most any major MMO release, from West to East, and outside of the occasional "that guy" have never witnessed these vast, thronging masses of players jumping nonstop just to bother people like OP.

Although it's going to be hilarious now that it will actually happen to OP because they asked for it. Youtube it!