The problem is not the apps, the problem is the users. Which means the problem is human nature.

Make a photography site for people to share photographs and it will inevitably turn into a site for people to share selfies of them pretending to live a life that they do not actually live and can not actually afford, but which you will inevitably compare yourself against.

Make a site for people to share opinions and it will inevitably be dominated by one particular group of users that will shame anyone with any opinion at all that diverges from the tiny area of acceptable opinion.

The problem is not the tools that the users have. The problem is not the engineers. The problem is that people are being giving exactly what they want. The problem is right there in the mirror.

There are no solutions.