I use them whenever there's a forced sequence of moves. When an opponent plays on in a silly position, you can sometimes string together quite a few.
PerfectGent> well i dont like conditional moves
But why? If it really bothers you, I would rather not play you (and upset you).
PerfectGent> and always ignore them
Excellent. This wouldn't bother me. The point is, I won't even have to look at our game until you make a move that actually requires me to think. :)

I would submit that conditional moves aren't saying anything - except that the person using them has already planned one or more responses to what they see as a predictable run of moves. I use them now and again, mostly for forcing combinations or obvious exchanges, because it is convenient to do so. Period.
If you're using them in a game with me to tell me something, trust me: I'm not getting the message.
Likewise, if you're refusing to be 'rushed' and you just move on to your next ready game, then that's more than fine by me. One of the things I like about the feature is that it keeps me off the clock that much longer.