Fake the supply side (aka content) as much as you can if you are trying to reach the existing community as your seed, if possible make sure people are noticing

Fake the supply side (aka content) as much as you can if you are trying to reach the existing community as your seed, if possible make sure people are noticing said content (via social/seo). Or simply reach out to said group or person to get a network started. Make sure engagement is kept high and differentiated as people change so being constant is not always the best scenario.