I support the idea in principle, but it's inevitably going to serve as a flame to bad-actor moths. Relevant: https://slatestarcodex.com/2019/02/22/rip-culture-war-thread...
I think Haidt's Heterodox Academy has a better approach, focused around academia, and all the accompanying values and norms which often aren't present in "heretical" ideospheres. (Perhaps there's a corollary to Gresham's Law regarding emotionally inflammatory ideas?)