You're probably getting downvoted because of the combination of unsubstantiveness and dismissiveness. That's bad for an HN comment, so please don't do that.
When it was created - jQuery definitely made javascript not shittier. Javascript was a mess (or browser support for it) and IMHO the most import jQuery goal was to eliminate of cross-browser incompatibilities [0].
Indeed. jQuery and prototype.js made writing browser-independent JavaScript possible. That was huge. And the early competition between the two made introduced (or at least drove the widespread use of) a lot of browser behavior that's commonplace now. Not to mention Ajax.
This is completely uncalled for. Two people have already commented on your posts today in this thread. Please take extra care to post civil and constructive comments here.