See, that's an issue. There is a donate page.. yet they still have to charge because most don't look for it or notice it... you can visit it here.
Your good intentions and honor system idea is commendable... but due to all the lazy, expect everything for free (but still think they should be getting paid to visit) people, this is necessary and should be respected.
Politically correct or not, they spent time in college too do this... it's not easy. There are concepts some people can't fathom, others have difficulty with and others still need to take time to understand. None of this comes naturally. They deserve to be paid... they earned it with every version of the os.
Agree or don't with their business model. They have every right to do what they are. If you want to complain about anyone giving the idea... go talk to the people at redhat... they are the first to monetize Linux.
Utopia doesn't exist, never will, and things are as they are. This discussion is rather moot. Can't put the rabbit back in the hat.... not to just get pro for free.