... If someone wish, he can cheat the on-line voting.

It's not like we were having an election for PM's President, or some such... :)  I always thought of these polls as being for entertainment only, and to provide some context for funny, wise or witty remarks, which all in all just helps to get to know each other a little better, and gives some rough feedback what "the community" thinks.

I've personally never felt the urge to vote more than once, except maybe if I couldn't decide on which option to vote. And even then, I just picked one and went on with life.  I'd suppose the majority of Monks are handling this in a similar way (?)