How Do You Know if Your Community Is Creating Demand?

It's hard to measure the impact of a community, especially to private stock unity. People don't want to be forced into some type of community that is tractable also. You only get as much out of a community as you put in. I've tried to narrow my communities till like, four to five, instead of like 20, just to be in one. But i would not recommend doing all these people adding their emal addresses manually. It seems very, very over-the-top to do that.