I'm also tending towards the generous stance:

1. The value of software is tending towards nil while it's ever easier to tailor bespoke solutions.

That suggests to me that I'm losing less by sharing, and it's probably not even going to be taken wholesale and kept verbatim.

2. The labs have already trained on everything and will keep on doing so.

Therefore continuing to contribute to OSS doesn't just benefit my own future self but the entire ecosystem.

(Yes, I need to get over how it appears a select few are making off with the lion's share but that only differs in degree in comparison to the past)

At least now the cards are being shuffled elsewhere...