I wonder how many of those who are up in arms about letting services like Uber and Lyft market their services would allow commercial hardware and software companies to make changes to GPL licensed software without attribution or sharing their modified source code?
Or should Apple support my home built PC if I put OS X on it? If I paid for the OS, the vendor should support that, right? Why should I pay extra for their hardware...it's no different, right?
To me, it's simple - if you want to market your services, follow the established rules.