To me, frameworks are such utter and complete nonsense I wrote an entire article on my newest website about what steaming piles of manure they are.
Scripting frameworks were bad enough -- but the level of mouth-breathing stupidity required to see anything remotely resembling a benefit from these corpulent overblown frameworks? I can only conclude that I am greatly underestimating the ignorance of my fellow man; something that if you asked my friends about they'd say was impossible.
They encourage you to use more separate files resulting in more handshakes, typically start you out with three times the code your entire HTML+CSS+SCRIPTS should total before you've even done anything, and by relying on presentational use of classes drags you so far back in methodology you might as well go back to using HTML 3.2 filled with font and center tags further doped to the gills with outdated attributes like align, bgcolor and border! Admittedly, I say the same thing about the style tag and common use of the style attribute...
Which of course such broken methodology and ignorant development techniques are why people waste 50-100k for every 1k of plaintext on their site now, resulting in multi-megabyte trainwrecks build from dozens if not hundreds of files to do the job of 72k or less in 3 files!
Then, SOMEHOW these ignorant fools writing all this extra code often using cryptic presentational classes have the stones to call it EASIER?!? BULLCOOKIES!!! More code, based on more code, that makes it more complex and more cryptic... is easier. Tell me another one Josephine!
Generally speaking, the only way you could think things like YUI, Bootstrap, Blueprint, Grid960, jQuery, mooTools or any of these other developmentally stunted development methods provides anything of value is a failure to know enough about HTML, CSS, Semantics, Accessibility or even how web pages are transmitted between servers and clients to be making rational informed choices on the subject; much less be qualified to flap your gums about it!
There's a reason I call it bootcrap, as my advice is usually that developers find a stick to scrape that off with before they track it all over their website's carpets!
But again there's a reason I say 98%+ of websites have no legitimate excuse to have more than four to six dozen K of HTML, CSS and scripts COMBINED for a single page, much less more than 48k of CSS for an ENTIRE WEBSITE apart from utter and complete developer ineptitude!
cutcodedown.com/article/HTML_CSS_and_JS_frameworks
BTW guys, that's some really shoddy use of word-wrap:break-word here...