I remember the first time I saw that in an airport, it was right after I got a laptop and went on a trip, I don't remember where, I just remember that most airports had only just begun offering wifi (not free) and there was of course talk of airplanes getting outfitted (though it didn't end up happening for a number of years), anyway I tried connected to the official "BOINGO" network, only to discover, much to my chargin that it required money, which I didn't have, so then i tried to connect to anything else in the airport, and the free wifi thing was the next option... I of course knew nothing about web security at that point...
Whenever I visit the Tech(x) sites, I just disable JS. That helps with the loading.
If it's really annoying, I use the web inspector in FF and remove the relevant HTML until it's comfortable to read. It's a bit of work, but it also depends on how badly I want to read the content.
The hotspot on my phone is named "$12.99 per minute". I get a chuckle every time I overhear someone in a public place bitching about how expensive the WiFi is...
https://news.ycombinator.com/item?id=1780058