The 80k Hours podcast does a fantastic job at this, providing a full transcript, a summary of the key points, and a time-indexed table of contents.
https://80000hours.org/2017/08/podcast-we-are-not-worried-en...
Then they get downvoted by people who think "TL;DR READ IT" is a masterful blow against everything wrong with Kids Today.
To be more serious, there's enough people who apparently regard summaries as lazy that it's hard to predict whether they'll be welcome in any given forum. Caring or not caring about downvotes aside, posting stuff that's unwelcome isn't very sociable.
Also a summary is only as good as it is accurate. If the piece being summarized has sufficient nuance it can't be summarized well, or is at a higher risk of being summarized incorrectly.
There's a joke here somewhere about judging a book by its cover.
If a summary covers all the relevant information in the article, then actually reading the article is a waste of time. And note how GP used compression to excise pieces that would be repetitious for an average HN reader.
How many articles are released every day? The sheer number of words published every minute, all with titles designed to demand attention, is truly staggering.
Assuming that everyone who wants an abstract/tl;dr is lazy is ridiculous (though, as always, not completely inaccurate). Anyone who enjoys staying up-to-date on a broad set of topics can hardly expect to maintain a functional lifestyle without some help in picking which articles and reports get read in-depth.
On a separate note, the bigger problem with Kids Today (imo) is the pursuit of arbitrary social points (karma/upvotes/likes/retweets) when engaging in discussions online. This seems to drive the trend toward low effort memes, jokes and pop culture references which decrease the signal/noise ratio.
I keep an eye on my total karma because I want to know whether I am, on the whole, fitting in around here, and which comments contribute to that the most one way or the other. Speaking truth to power can be useful, or fun, but if you're saying things that aren't being heard, you're just wasting your time and everyone else's screen space.
And some venues want the entertainment. That's signal in their world, and they deserve to have it.
With text you can tell by skimming if something is worth your time. Even with video preview you can get a bit of a gist. I hate audio with no context.