It was Clouldflare after all ...
I was surprised to see this today:)
When is the CAPTCHA check triggered ? I posted without going trough this step.
https://i.imgur.com/WRvB10c.pngEDIT>
No CAPTCHA required to post this thread.
Happen when I preview a post with code tags in it , and then happen again when I posted it.
Edit 2:
I tried to edit the OP and i got this one >
Tried a few different scenarios.
It's not
tag based, not a
character limit based. It's most likely random occurring and this will be a perfect solution to the spam bot problem