Gregory's Server
Detected a high number of idle sign-ups with uniform usernames since yesterday, all with e-mail ending in 2nd.world. Website of 2nd.world looks like FastMail's design, links don't lead anywhere. Suspecting phishing site / spam farm. Suspending the accounts.
@Gargron Are you getting any of these random alphanumeric usernames that never confirm? I'm assuming the email addresses are farmed from leaks.