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Re:Amazon: Not OK – Why we had to change Elastic licensing by pjc50 on Tuesday January 19, 2021 @04:22PM (#25839052)
Well .. yes. That's the license fee. If you incorporate Oracle code or Nintendo characters in your software you'll get sued as well. So no you can't use GPLd libraries without contributing forward. This is intentional and the purpose of copyleft.

GPL allows you to "use" but not "make derived works".

Re:Amazon: Not OK – Why we had to change Elastic licensing by ABeeSea on Tuesday January 19, 2021 @04:33PM (#25839164)
And most companies have decided that the fee of opening their entire code base to use a single GPL library isn’t worth it. That is heft license fee if you have invested billions into creating your company’s source code.