To the Editor:

“Please Prove You’re Not a Robot,” by Tim Wu (Sunday Review, July 16), is a realization that bad actors have figured out how to take advantage of Twitter and Facebook and other such childish social media sites to spread false information and create false identities that are counted in polling and can slant dialogue.

This is a dangerous weaponization of the social media sites that will eventually render them useless.

People should remember that nothing is free and that these sites are systematically stealing bits of information from users. The robot issue illustrates a new and exponentially more dangerous misuse of these sites.

People should start to drop out of the social media sites as they begin to realize what is going on. The management of the sites really do not care about the problem as long as it can sell advertising. And the Trump administration doesn’t seem to believe in regulating anything on the internet.