Don't you think its better to just curate your social media and follow communities where the default is not toxicity? This is basically a distortion layer for reality and will just encourage more echo chambers.

Also what is toxic to one person is not toxic to another depending on their subjective choices. How will you solve for this without everyone just seeing what they want to see even if reality is not like that? I feel that will just enhance the problems of social media than reduce it.

It kind of falls apart when you start to think of edge cases rather than "hey this tool will keep morons off my feed!" mentality