"There is a difference in attitude between using a facility for free and actually contributing."

Sure. But sending money is only one way people make a contribution to the Mudcat. It's a very good and useful way, but you do it because you feel you belong here and value it, not because it's an entrance fee or a subscription. Like a collection plate in church.

Maybe we should have one of those charts with a red thermometer or whatever, like they have outside churches that are trying to raise money for a new roof...