Same reason you need an email server, not everyone is online at the same time.
Closest I’ve seen to something truly serverless is plebbit, which is a Reddit/4chan clone using ipfs.
https://mander.xyz/post/13886025
FUTO is the organisation Rossmann works for.
mCaptcha can be self hosted https://mcaptcha.org/
It’s technically not a CAPTCHA, for the pedantic, but it serves teh same purpose.
In most “democratic” society authors have the right to be published anonymously
mCaptcha is a proof of work pseudo-captcha, it won’t block bots completely, but it heavily rate limits them and makes them computationally expensive to run.
It was the original purpose of the bitcoin algorithm to limit spam.
If you have to do a lot of maths that takes your computer (for example) 30 seconds, that means it costs 30 seconds of compute to create an account. Nothing to an average user, for a spammer that wants thousands of accounts it gets expensive.
Several captcha[0] libraries already use this and it’s great for accessibility (normal captchas are terrible for it)
[0] I know, it’s not technically a captcha.
I think I need to clarify.
I support mask wearing, I wore one despite being legally exempt on health grounds (autism).
The fact is covid is still here, if anything wearing masks at a large scale gathering like a protest is still a very good idea on health grounds, especially for those with weakened immune systems, the unvaccinated, etc. It’s utterly mad to ban a protection device you once mandated when the problem it protects from never went away.
I guess nobody remembers windows ME any more?