This is not a moral statement but a physiological/neurological one.
When certain hormone systems are activated, blood flow is redirected from the cerebellum/neocortex to the reptilian parts of the brain that control instinctual behavior and sexual activity. Prepping the nervous system for sex shuts off higher thinking.
Wouldn't that be useful to (them), a way to automatically lower the chans' brilliance?
Also the constant distractions consume mental ergs, deplete neurotransmitters, make the brain less able to pursue long and complex trains of reasoning.
Wouldn't (they) desire a way to distract anons so that more complex logic paths don't get pursued as much?
Again, this argument is not a moral one (although moral arguments can be made, and stand up to scrutiny), but a neurological/physiological one.