You're right, I should specify (although the condescension is not helping your case). They are views deemed problematic by the Tesseract dev.

I've had run-ins with other devs or instance admins who find my views problematic, and banned me from their community/instance/whatever. That's unfortunate, but it's transparent. People know who the petty tyrants are and act accordingly.

This is something different.

Having a frontend preemptively blocking users and instances based on the sole judgment of the dev is unprecedented AFAIK. We don't need to invent intimations of bigotry to see why this is wholly bad for the platform. It goes against basic principles of transparency, openness, and free choice that the Fediverse is based on.

I believe that a front-end (client) should be a tool to access the service/network. It shouldn't be making content decisions. If someone wants to make a block list and publish it for others to use, that's great. If someone wants to trust an admin for content curation/blocking, well... that's how this whole thing works. People choose or change instances based largely on that trust. But to have a tool for accessing the network also modifying the content? That's bad, and a bad precedent.