So, lemmy seems to be flooded with spam bot accounts at the moment. Look through the table of servers on fedidb (https://fedidb.org/software/lemmy) and notice how there are these huge instances without any active users (MAU).
Also notice how startrek.website has 9000 users for 276 active users this month.
From memory, when I signed up, there was no email requirement or captcha or anything.
Admins … maybe you want to tighten things up?
Yes, this is a big issue currently going on…
Enabeling captcha should fix the issue. Email alone not since they will abuse the email service