Unfortunately, there is no historical example where this hasn’t turned predatory. Its a tale as old as venture capitalism:

• get free contributions to your FOSS project that youre selling from altruistic people doniting their time and expertise
• make a closed-source set of extensions as optional dependencies
• slowly diverge the closed source feature set to include developer and user "must-haves"
• slow or functionally halt open source contributions.

It is an oft-repeated long con to pull off a mass heist of donated skill and time.

‘It’s my nature.’ the scorpion whispered, ashamed and scared. ‘Self Destruction, it’s in my nature.’