Creating Maintainable UIs with React and Meteor

I feel like Meteor has been floating along for along time without significant traction beyond toy-projects. I remember seeing (I think?) Meteor at Djangocon and being impressed, but feeling like using it was an all or nothing decision given the pace of how quickly front end development was -- and still is -- changing.<p>A year or two later I looked at it for a small project but saw it was still exclusively tied to mongoDB.<p>Are there any major sites or businesses using meteor?

It seems like all the recent client-side frameworks are really desperate to jump on the React bandwagon somehow.<p>I suppose this could be seen as validation that the new approach it takes to rendering and organizing UI is a good one, if competing frameworks are trying to mimic or integrate with it.

So I instantly saw the value in Meteor when I first heard about it, but I&#x27;m not really getting what&#x27;s so great about React. I guess I haven&#x27;t done enough front-end work to realize the need for something like it to manage large applications. If anyone could further explain why it would be worthwhile to start using React, I&#x27;d love to understand.

Apologies for the off-topic comment, but does anyone know what this page is doing to mess up mouse wheel scrolling so it&#x27;s painfully slow? I&#x27;ve come across a few sites that do this recently, and it drives me crazy, but I haven&#x27;t found any obvious JS attached to likely event handlers so far.