Reply #4: There are 2 reasons that I can think of.

[R3dD0g]

One is that in some cases reporters & pundits actually report the results of these crappy things as if they had some relevance. My local paper used to run a call-in poll during the '80s and the conservative columnist would repeatedly use (with no disclaimer whatsoever) the results to bolster his arguments. So, while most everyone knows these are BS, it never hurts to make sure they can't be used to persuade the few who don't.

Second, is that every time some DU'er clicks through to the poll, the web sites log will include a click from DU in the referrer log. That will let the poll's author realize that DU is a force to be reckoned with. So, what if they know the poll was DU'ed, they will know that DU is big.