You are correct in that Bezos does little for the community, and AWS tends to repackage community projects. Yet, most firms do put in many paid hours on kernel development etc.
Have a wonderful day =)
Linux kernel uses GPL.
Have a great day =)
GPL (ie. Copyleft) guarantees "open source" for _users_ of the software
Apache (ie. permissive) gives source code to _developers_.
One may be surprised by having faith in peoples goodwill. =)
Nothing in the GPL requires this, only distributing sources down to your users, who may or may not then redistribute the sources back upstream.
The project contamination happens even with the LGPL.
The subject was contaminating licenses, and why they are not appropriate in some situations. Cheers =)