Comment by sublinear

Since the result is the same to the end user regardless of what I say here, I know I will not sway many people but...

As someone who has done what I will call "corporate web dev" for a long time, it's almost never the actual site or web app that is abusing your resources. It's all the junk 3rd-party scripts that the business and marketing people force onto it.

These scripts are intended to be "low code" solutions. Even if the developers working at those places mean well, nobody reads their docs least of which the marketing goons with unfettered access via a CSP nonce copy-pasting whatever example <script> tags they think they need to inject to make the thing go.

If you ever want a laugh and have tons of free time you should find one of those sites loaded with these kinds of scripts that an ad blocker would normally get rid of, read the docs for how those scripts were supposed to be used, and bask in the insane stupidity and cargo cult nonsense causing duplicate events and many redundant http calls and websockets... and then turn your ad blocker back on.

You may then ask yourself sensible questions such as: "doesn't all this royally fuck up their analytics data?" and "does some poor soul making reports from that mess ever clean it up?". The answer is yes it does, and no they don't. They instead will try to play the blame game and claim it's the underlying site or web app causing the issues until they find another job. There's a lot of churn in that space.