Blocks are two ways: If A blocks B, A cannot see B's posts and B cannon see A's. At all. They are invisible to each other. Also, any conversations between the two of them become invisible to A and B, preventing "wow they blocked me over this" screenshots entirely.

the website prevents dunking and effectively because of this. it's a known phenomenon that hate speech accounts really struggle to get traction here, because of this, and also because *there is no algorithm to push their content everywhere*. It's ALL just who you follow!!