https://www.techdirt.com/articles/20180821/14174640480/verizon-throttled-unlimited-data-plan-fire-dept-battling-wildfires.shtml

We've long discussed how Verizon (like most U.S. cellular carriers) has a terribly-difficult time understanding what the word "unlimited" means. Way back in 2007 Verizon was forced to settle with the New York Attorney General after a nine-month investigation found the company was throttling its "unlimited" mobile data plans after just 5GB of data usage, without those limits being clearly explained to the end user. Of course Verizon tried for a while to eliminate unlimited data plans completely, but a little something called competition finally forced the company to bring the idea back from the dead a few years ago.

But the company's new "unlimited" data plans still suffer from all manner of fine print, limits, and caveats. That includes throttling all video by default (something you can avoid if you're willing to pay significantly more), restrictions on tethering and usage of your phone as a hotspot or modem, and a 25 GB cap that results in said "unlimited" plans suddenly being throttled back to last-generation speeds as slow as 128 kbps. In short, Verizon still pretty clearly has no damn idea what the word unlimited actually means, nor does it much care if this entire mess confuses you.