> I'm tired of developers who value other developers based on if they use the latest hippest framework or not
The thing is most developers are actually pretty terrible at shipping product and so they judge each other purely on technical decisions, not business ones.
Libraries, especially MomentJS, take a TON of guesswork out of something that's incredibly complex: date/time. I use Moment for anything dealing with time on the front-end because it's almost universal at this point (other devs can support), it's a VERY mature/supported product, and I can just _trust it_ at this point.
People talking about bloat in regards to jQuery/Moment (or insert any JS library that's over 3 years) usually fail to mention things like CDNs, gzip, HTTP2, etc etc. Truth is, if you practice good hosting methods you can get the entirety of jQuery 3.4.x WAY beneath 100kb, to the tune of approx 35kb (last I checked).
This is the reason the web is fat, nay, morbidly obese. They solve problems for clients but they make the user experience suck, death by 1000 cuts/megs.
Bloat tends to originate from using way too many widgets/analytics coming from third-party domains.