in this case, maybe: MD;DC (mobile device, didn't click)

Most of the web sites have a tendency of emptying your data plan, so, I would understand if people are hesitant on opening the web page.

That web page is literally 34 words of text, with no images and a small two line CSS file. It isn't going to empty your data plan, unless you are using a 300 baud modem :-)

The problem is that people can only know it after going there, and risking (with what 90% certainty?) emptying their plan.

Sounds like visiting HN is a risk to them then. The whole point of HN is to provide links to interesting sites.

And the person visited the website who gave the summary. Presumably they already knew.

I always read comments before article on mobile, hoping for a tldr comment.

There's at least one hipster in every crowd that does crap like this. thanks for being that guy.

It does. I'm just gonna implement what op said - no need to click hoping it's written in laymen terms