No one is saying to completely stop shouting for parties, seriously. The OP suggested using the search first, then shouting if you still need to.

The people who really want to party are gonna have their flags up if they know that the search function is there. People who don't like standing around in town for hours are gonna have their flags up. So use the search, get a hold of those people who want to party but don't want to stand around doing nothing, THEN start shouting for members. That's all we're trying to say.

It's silly to shout when there are people seeking party who aren't in shout range.