Earlier quoted context omitted.
1) people believing long-outdated guidance about not using open WiFi networks without a VPN 2) protecting your browsing traffic from being observed by your ISP (where you may not have much choice), at the risk of it being observed by the VPN company (which you trust). 3) Torrenting without having to worry about fines, nastygrams and other annoyances 4) Bypassing geoblocking 1 + 2 is what the VPNs advertise, but I thi…
What's wrong about (1)? Https or not, there are still MitM attacks, and the URLs you are accessing are still trackable. As to why I'd trust my VPN more than my ISP, who's CEO has got more to lose once word gets out that his company cooperated with authorities to turn over my logs?
As someone else pointed out, URLs are not trackable, host names are, but the advice often comes in the form of "don't do sensitive stuff like online banking from untrusted networks". Since especially this has had HTTPS for 10+ years now, this advice is far outdated.