Sorry, yes, still trying to wrap my head around it. It's one of those things where there is quite obviously no direct benefit for the user. The company is trying to sell it as improving their content, moderation, security, etc. which may have indirect, knock-on effects for the end user but whether that would even be true or if it would be perceptible to your average person is MUCH more questionable.

It's the same kind of thing when you see people defending exclusivity on consoles. I mean sure, it helps prop up your favorite company/developer in hopes that the market benefit may someday come back around and help them to produce more content/games that you like, but people seriously need to start looking out after their own self interests first and corporations be damned. They earn money by providing actual value, don't ever argue against yourself.

It will stop bots/scrapers/etc dead in their tracks seems to be the main reason.