On AI and human writing - reading noise is the new meta?

The internet as we know it is dead - many experts say with lamented face and wrinkled nose. The internet was meant for people (and spiders), not for bots who spew garbage, which is then liked and shared by other bots (With words like 'Amen', 'that is true brother'). It has formed a gaint echo chamber of 1s and 0s. But why is it left unchecked? How difficult would it actually be, to filter out new accounts which post daily? With similar types of captions and images?

My theory is as follows - the bots, despite all their drawbacks - contribute to something quite substantial to an investor. It massively inflates the 'user base' so to speak, which on paper looks great. After all, who doesn't like infinite growth?? The yatch is not gonna buy itself!!!!