Don't you think that people still have a conscience? (sometimes:)) And that it can prevent people from writing "bad" messages? Or do you think that the only thing that kept us in check was reputation?
I already wrote about CONSCIENCE in one of the posts, it's a shame you missed it! :
Conscience is a good STOP, as you rightly noted!
But not everyone has it, and those who do usually forget it at home!
I know many very good, TRULY good people who claim they don't have a conscience! :
Ideally, conscience would be the best

Как много в жизни есть путей
Для добродетелей и мира.
Я вернулся...