It's this one
www.mumsnet.com/Talk/petitions_noticeboard/a2234484-To-ask-you-to-sign-this-Change-org-petition-re-denying-Julien-Blanc-a-UK-Visa?msgid=50732156#50732156
Asking us to sign a petition to prevent a piece of scum from being granted a visa to visit the UK to conduct 'Dating Seminars'.
'Dating Seminars' in which he instructs other men in his 'techniques', which amount to physical, emotional and racist abuse of women.
The thread was originally in AIBU but has been moved to the 'petitions' area, which doesn't get much traffic. MNHQ are now considering moving it to somewhere more prominent.
So, AIBU to draw your attention to it? I don't think so 