In reply to Gaurav.

@guarav,

sure some people want it, and they are useful features, but the amount is far from even being 20%.

Lets say something really useful like xml-rpc. Probably a minority of people use it use the wordpress apps on their phones to publish content, this leave jetpack as the biggest user of the feature, and jetpack is installed on less than 5M sites while there are about 70M wordpress sites. These stats come from the bad statistics man so they are probably wrong in some way or another, but assuming even just 40M actual different installs, a feature will need to be useful for 32M of them.

Probably no feature, except for the very basic ones, can reach the 80% mark, but even if you draw the line lower you will find that there are a lot of "rarely used" code in core, and you need to draw the line if you want to do the "decisions, not options".