If you are not happy with the committee's decisions, then replace the committee. Or in the best Irish tradition, have a split and set up a new organization.
You may well find that many people are happy to sit back and criticize but not take any action themselves. The committee is getting tired of it.
The committee may well feel exposed to defamation actions. Do the club members post anonymously or openly? You don't see that much rubbish on AAM, because we delete it quickly. But people seem to think that they have a right to say what they want on the internet, whereas they wouldn't be prepared to say it to the person's face or openly where they could be sued.
Brendan