I have been on reddit for just about 12 years now. Something I’ve noticed over time is just how hateful the place has become. A complete outrage machine. Every single sub became filled with it. I’ve filtered so many subreddits over the last few years, it’s insane. I don’t know enough about this place to be sure, but I do hope it doesn’t become the same type of echo chamber of anger.
That’s provably false across many social media sites. No anti-bot solution will ever be perfect and it will always be a cat and mouse game. Captchas have a measurable effect on limiting registrations and comments from bots.
We don’t say “deadbolt locks only cause inconvenience for homeowners, they do nothing to stop burglars breaking a window”. We defense in depth. We use the deadbolt as one part of the security/defense plan.
Captcha is one part of the many actions and systems that would make up effective protections.