I will play devils advocate a bit here since there is another side to this to be cautious of.

I do agree that community is important, it helps to validate ideas and feedback new ideas which should lead to a better overall project.
But today, communities are used as a metric for fund raising and so many communities are just fake accounts created because it's an expected metric. I've seen a few really dull sounding projects with thousands of members and very little actual activity or activity clearly from a small number of people running multiple accounts. I would prefer a smaller community of real people than a larger community of fake accounts but since its now a requirement for a project to have thousands of members then we get mostly fake communities.

But I do agree with the value of community and that a good, active community of real contributors is really great to see and brings a lot of value to a project.