Because for certain types of things, like pirating movies, it's good enough.
Edit, to add: No VPNs do this.
Yet.
I got a nastygram from the hosting provider I used.
counter-example: https://forum.goldenfrog.com/t/no-longer-feeling-private-aft...
https://arstechnica.com/tech-policy/2011/07/major-isps-agree...
Edit: spelling
It's about choosing between the lesser of two evils.