Post count is indicative of only one thing - how much free time someone has to inflate it and how much they can find to ramble on about.

Member since is only indicative of how long someones been a member, you could be a member for years and never contribute to the community.

Each member of a community this size simply needs to self police and things go much better. If someone trolls, don't feed them. If someone is ignorant, try to enlighten them, if they prove to be beyond enlightenment, don't try to set them on fire, simply move on. People need to learn when they've said the same thing enough times that anyone with a reasonable chance of understanding already would have understood - and that goes a long ways towards clearing up any of the recent issues we've seen here.