It's rather: ... a competing formatter that may not be used on open-source projects.
The composition of both paints is a trade secret ("closed-source formatters"). The controversy is about disallowing the use on a broad class of projects benefitting the society.
Any man you sample most likely has more than the average number of testicles, but fewer than the average number of ovaries. No problem when dealing with individuals.
No. But I didn't think it was that bad in the first place. They offer a product for a price. As a customer, I'm free to take it or leave it based on merits. I'm not familiar with this model, but at least one thing must be true.
1. A competitor offers an alternative product at a better price. 2. Sennheiser produces these more efficiently than anyone. 3. All alternatives have similar margins. 4. No other manufacturer has a similar product.
Whatever the case may be, it will inform the rational comparison shopping process. This is a discretionary item. There's probably some economics name for this, but it's not insulin. Sennheiser isn't coercing anyone.
No disrespect to Mr. Cook and his formidable achievements, but A LOT of the „value“ increase comes from the monetary policies in the zero interest rate economy.
On top of all other advice here: choose your learning material wisely. Ask the existing communities to point you to the best resources for your objective and skill level, then use those resources for a fast-track dive into the topic rather than wasting your time on less helpful material.
The composition of both paints is a trade secret ("closed-source formatters"). The controversy is about disallowing the use on a broad class of projects benefitting the society.