People don't coalesce into active and committed tribes around the status quo.
The only vibrant tribes in our communities are the ones closer the edges, or those trying to make change. The center is large, but it's not connected.
If you're trying to build a tribe, a community or a movement, and you want it to be safe and beyond reproach at the same time, you will fail.
Heretical thoughts, delivered in a way that capture the attention of the minority–that's the path that works.