Regulatory capture through a higher barrier to entry. Any social media platform that wants to compete with Meta's portfolio will now also need to have an age-verification system in place (which is guaranteed to introduce higher costs). Meta can likely afford to eat the costs here as a tradeoff for the higher impact on smaller players.

It also gives them more information on users as a bonus. Further, verification with a real ID is also a quite effective barrier against excessive bots.

https://m.youtube.com/watch?v=-K11rY57K7k - Dmitry Vyukov — Go scheduler: Implementing language with lightweight concurrency

This one notably also explains the design considerations for golangs M:N:P in comparison to other schemes and which specific challenges it tries to address.

The number of git forges behind Anubis et al and the numerous public announcements should be enough.

Scrappers seem to be exceedingly careless in using public resources. The problem is often not even DDOS (as in overwhelming bandwidth usage) but rather DOS through excessive hits on expensive routes.

Awesome idea, IF you are US only and don't cover edge cases and (want to depend on an external API or want to have some sort of eventually outdated map of city <> postcode).

It is possible to do this properly, e. G., DHL and UPS do a somewhat okay job of it but isn't easy.