On Wed, Nov 13, 2013 at 7:42 PM, Tim Starling <tstarling(a)wikimedia.org>wrote;wrote:
On 10/11/13 03:57, Nathan Larson wrote:
Also, we have other antispam tools that are way
more effective than
nofollow at deterring spam.
Like what? AbuseFilter is unusable for small wikis, SpamBlacklist is
poorly maintained, and FancyCaptcha is comprehensively broken -- we
have had reports of sites with FancyCaptcha being spammed to death.
Pretty much any captcha can be broken for $1.39 per 1000. You wouldn't
need very many impressions per edit for that to be economical.
Asirra works pretty well. I've never seen it fail to bring spam down to
almost nil.