Now it does! https://github.com/tiekookeit/0ad_mod_buildings_focus_extra_keys/commit/967561de7ffb0855d73cc7eb3d69e195bfe167dd

Didn't know that. I will try that later, I saw this mod but judged that by the name and it didn't catch my attention.

I see that despair and exhaustion lead to the emergence of outlandish ideas

Can we just have it check if there were any similar email addresses registered with an account in the last 5 minutes or something, and you can't create it

It's not possible to register more than one account with the same email address, the more problematic bots create tens/hundreds of email addresses which are different, but similar. Many of them follow the formula of oneword_another@example.com, so I've thought about whether we should make it impossible to register with an email address containing an underscore, but as with so many counter-measures I think that might cause trouble for genuine users, so I doubt that would be a good idea.