[ecoled_ame]

They are probably including their self in the question they pose. Why do you think that the individual who suggests an idea has to perfectly embody it, else be a hypocrite?

[deogeo]

On the other hand, just because an idea is suggested by a hypocrite, doesn't mean it's a bad/wrong idea.

Presumably a discussion is held to arrive at some sort of solution or truth, and not to advertise the moral virtue of the participants.