I suppose you're going to respond with something along the lines of "because it's better than the browser's search function".
But again: why is that?
Why do the built-in browser tools suck as badly as they do?
Example, outside of search: I realised some months back that a chief reason we have browser Reader Mode features, to uncrappify crappy site CSS, is because browser default styling ... is so horrible.
And again: why is that?
Why do we have craptastic CSS entity defaults when, with a very little work, every page could look, without any styling at all, pretty damned readable:
http://codepen.io/dredmorbius/full/KpMqqB/
(And if that's not your cuppa, then themes such that you get what you want -- Night Mode, or whateves.)
Whatever browsers are being built for, it's not the people actually using them.
/me looks suspiciously at Chrome => Google => Advertising....
Gee... I wonder why that might possibly be.
Again: why is cabapility-in-the-browser so impossible to provide?
Why isn't "search post" vs. "search comments" something scoped into a browser? If comments are a ... not entirely novel or unknown concept within Web design and activity, why are the abilities, say, to have browser-generated lists of authors, or search by author, or post/comment distinctions, or persistent reputations of commentators so that I can tell if @[email protected] is just an asshat or a space alien cat who really knows where his towel is (and independent of whether or not dredmorbius maps to any particular known "real name")?
It's not like the question's just come up within the past 5 hours.
Really: Why is the browser so fucking limited in this regard?