[eplanit]

What is "offensive" is subjective, so it's impossible to algorithmically, or otherwise, to label tweets as such without imposing bias -- which, will be itself offensive to others. Lose-lose.

Twitter is a cesspool, and I expect offensive odors at cesspools. People discharge their negativity in Twitter similar to (metaphorically) actual cesspools -- maybe it's just as much a relief for them.

My solution to Twitter is to stop using it.