Haven't you come across this before? How long have you been playing on the internet? The worst ones just say "move" without any further comment, that sure is annoying.
Actually, I haven't come across it much - but the first time I did it was just as you describe: move ... move ... moooooooove
I just ignored that guy.
I always get annoyed waiting for my opponent when they take over a day to make their move. I make sure to respond within atleast thirty minutes of when my opponent makes a move to keep the game going at a reasonable pace but it seems that some people dont share my enthusiasm. Of course I never tell anyone to move faster or anything, I simply bottle the resentment up inside and let it stew .
I'm assuming you meant at most 30 mins, since that fits.
From your Online Chess profile "Time/move: 1 hr 24 mins".
well within 30 minutes of when I see it haha