User blog comment:DaNASCAT/Technical Update: September 20, 2011/@comment-876022-20110920222542/@comment-8-20110921184556

I prefer the version, "there are only two hard things in Computer Science: cache invalidation, naming things, and off-by-one errors" ;)

On SearchDigest, there's a request in to allow existing pages to be toggled on and off - I think that there are cases where it's useful to know what existing pages are searched for a lot (for example, to suggest which pages are the top choices for an improvement drive) so I prefer that solution to removing existing pages from the list outright.

A blacklist would be adding complication though, I think... the feature only shows the last 7 days results (rolling), so fads in searching will roll off the list. And as this is an experimental feature we don't want to add complication where avoidable right now.

I've just enabled the feature on a second wiki, extending the limited roll-out... we'll be watching to see how well it performs :)