Like a hell of a lot of developers (and webmasters) they rely on the fact that it's as rare as hens teeth that anyone actually reads through reams of legalese gobbledygook before they agree to install what they need to use (... mea culpa...
WOW! so there is such a thing as a free lunch and a wide range of 'content' hosts... AND at least one popular 'free' editor get you to pay for it and stump-up for the tip as well.
Use it? Dump it.