I guess the problem is that you’ve gotta be super careful. If you just block all data centres, you won’t be able to federate with most of the fediverse. It’s got to only be applied to the front end website, not to the API and especially not to the federation endpoints.
Tools like Anubis do the filtering pretty well anyway. Some 75% of traffic we get to the website is blocked without even getting a challenge, because of their list of IPs, user agents, etc.
I guess the problem is that you’ve gotta be super careful. If you just block all data centres, you won’t be able to federate with most of the fediverse. It’s got to only be applied to the front end website, not to the API and especially not to the federation endpoints.
Tools like Anubis do the filtering pretty well anyway. Some 75% of traffic we get to the website is blocked without even getting a challenge, because of their list of IPs, user agents, etc.