-----Original
Message-----
From: Gregory Maxwell
On 1/24/07, Andrew Cates <andrew(a)catesfamily.org.uk> wrote:
Therefore, could I put in a request for a
"greenlist"
feature to allow
sysop approved links to be generated without rel="nofollow"?
There are well over 8 million external links in enwiki alone,
including well over a half million distinct domains via HTTP.
A greenlist is not a remotely sane solution because of this...
A Bloom Filter could hold the entire 8 million urls in about 1 megabyte with a
false positive probability of 1% or 1.5megabytes with a 0.1% probability.
Whilst loading in and out of PHP wouldn't be nice, a separate service is
certainly feasible.