[Engineering] meta contact pages are being abused by spammers, Captcha added to those to combat the behavior

[Alexandros Kosiaris]

Hello everyone,

TL;DR is I just merged https://gerrit.wikimedia.org/r/#/c/416659/ that
enables a captcha on metawiki contact pages as we were under a
distributed (bot created probably) spam attack that would cause OTRS
agents that handled those queues undue harm.

Relevant task is https://phabricator.wikimedia.org/T188985 for those interested.

Regards,

-- 
Alexandros Kosiaris <akosiaris at wikimedia.org>