[Tommy430]

Agreed. Sadly it's due to the constant churn of tech these days. Developers should just take notes from the books on the shelf: don't change without consent unless you explicitly some change.

Slightly off-topic: I've been viewing YouTube on a old YouTube frontend that works back to (at least iirc) IE6 and Win98 for some time now [1] [2] [3]. The frontend feels mad snappy as hell and it loads fast compared to YouTube today since the frontend is not heavily JavaScript reliant, it just uses it to enhance the site.

[1] https://i.ibb.co/YpmFP91/yt2009-34.png [2] https://i.ibb.co/THK0wk0/yt2009-35.png [3] https://i.ibb.co/nk7nxZQ/yt2009-36.png

[MasterIQ]

    Abuse of animation and skip of best-effort loading:
    This is probably more relevant to the sluggishness and bad interoperability, rather than JavaScript.
    [ Those abusing JavaScript for nefarious purposes: probably not the JavaScript to blame. ]

    Standards established don't necessarily imply being well-designed:
    Blindly following without thinking shall regardless trap.

    Many current infrastructures are fundamentally flawed and difficult to fix:
    1 step wrong, all steps wrong.