I think a general comment that goes hand in hand with this list is: don't expect someone who has released open source code to be supporting you. If you are using extensive open source code in your (money-making) project, acknowledge that by helping out or making donations.
Open source is a two-way street. If you just take, and especially if you have an attitude of entitlement, that is the fastest way to burn your bridges with developers who are providing you with tremendous value.
>That is a showstopper for businesses wishing to contribute or incorporate code from these projects.
That's the whole point. If you're making money off this code you should be contributing back.
In practice the only companies that actually seem to really have a problem with this are companies with an uncompromising dog-in-the-manger approach to intellectual property. Companies which also make you sign contracts that say ideas dreamed up in the shower and off-the-clock projects belong to them.
>Takeaway: If you can choose a more permissive license for your project than GPL or LGPL, please do.
Or how about you start paying some hard cash for your paranoid approach to your corporation's intellectual property instead?
"If use of our drivers under the Apache License v2.0 or the database under the AGPL v3 does not satisfy your organization’s vast legal department (some will not approve GPL in any form), commercial licenses are available"
I'd contribute to a library I can use. I would not however give my entire app away. Calling people who don't want to give all their work away 'cheapskates' is itself a pretty cheap argument.
I write a whole bunch of my own libraries under MIT. I'd rather just use, or create, a different library than pay for a proprietary license. You said people who feel that way are cheapskates: the name calling is unnecessary, and it's wrong: I just expect other OSS authors to license their work on the same terms as most of us do.
> I just expect other OSS authors to license their work on the same terms as most of us do.
That is exactly whats GPL says. License the work on the same terms and everyone is happy. License the work on different terms which prohibit sharing and modifications, and everyone gets unhappy.
The whole point of licensing something under MIT is so others can put their modified works under different terms.
Open source is a two-way street. If you just take, and especially if you have an attitude of entitlement, that is the fastest way to burn your bridges with developers who are providing you with tremendous value.