That's a good idea. But, of course, it isn't so much that they quote so often as they quote the post above, which is the topic they are obviously referring to.
I always get a kick out of the improper quote so it reads:
[quote=John]Now is the time for all....[\quote], and therefore does not look like a quote. I ALWAYS have to go in and edit that.
For the novice user (not that I am any UBB genius -- if that is even the term), they must go back and just think, "Hmmm, guess it takes a while to work."