A forum I post on has zero restrictions on sign up. No recaptchas, nothing. Couple of times a month we see some (usually Cyrillic) bot post some thread with a

A forum I post on has zero restrictions on sign up. No recaptchas, nothing. Couple of times a month we see some (usually Cyrillic) bot post some thread with a link that (probably) no one clicks and we all have a laugh and tell it to post more (it never does). It's a small site, footfall in the 10s, so maybe that's the reason.