A lot of the comments seem to be focused on AI bots or scraping.

These are intended to protect against super high volumes of requests that drain resources. Like others have mentioned, it may be related to a VPN. The system is detecting a lot of requests from a single IP. If you are on a VPN or using another tool to spoof your IP you might be coming from the same IP as other people who are accessing it at the same time or have recently tried to access it. Website and other services usualy have bandwidth caps so they can only serve so many responses at once, and if are all being taken up by bots, the website or other service won't work for legit users. This is how a DDoS attack works. Eta: so these checks are less about stopping bots from accessing the site than stopping bots from making the site inaccessible to legit users.

(This is a very simplified explanation because that's my level of understanding, I hope if there are errors someone will jump in and correct.)

Do I find it annoying? Yes. But I understand the site might not work without them.