That could be a good implementation, as the way you said that label could be quite unpopular, the idea of do it correlated to SP and only applied to earnings is good also.

That is a form of direct taxes that could be useful but the indirect taxes to discourage some bad content or to foment others, could be another good initiative as well, I know that there are bots like cheetah that do it already but I don't know if they're very effective, for the things I see daily I would say that they aren't.

Anyways it's so polemic issue that I'm very skeptical of the application of such measures I think that is a problem that brighter minds than mine should try to solve.