I'm not speaking for Cholula, but to answer your question, birdstrike, I think that a person can second a motion because he or she thinks that is what would be best for the members of FlyerTalk - they can even vote on it as well. But they don't have to be passionate about it - it's possible to represent the people who elected you, even if you personally disagree with something.

Example - Let's say that I hate every aspect of the SPAM & OMNI forums (which I don't) and there was a proposal for us to remove them from FlyerTalk. Even though I may be passionately against those forums (which, again, I'm not), I would recognize that the overall members were pro-SPAM & pro-OMNI & thereforw would vote to keep them.