even a captcha wouldn't keep a real human from signing up repeatedly and posting the same ad to every thread.

Maybe the best approach would be to require a brief questionnaire submitted to the moderator for approval.

example:

"which of the following sentences makes most sense to you:

1) "to love is of dramatic enjoy"

2) "it is good in your life if happy"

3) "through a wheel sometimes make spiral"


If they pick ANY of the above, they could safely be denied membership. A real one of us would send an email to the moderator asking what's up with the stupid questions

and if they catch on and ask the moderator "question of the moment unable to be known"
... 'nuff said. DENIED!!

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0