Comment by TalkingCodeMonk

From their about page: "Thunderbird operates in a separate, for-profit subsidiary of the not-for-profit Mozilla.org. This structure gives us the flexibility to offer optional paid services to sustain Thunderbird’s development far into the future."[0]

The whole "Thunderbird Council" approach sounds good in theory, but I don't see any assurances that my donation would not fund for-profit service or feature development that could be locked behind a paywall, or that the whole product can't be sold off or transitioned to some closed offering at any time.

The core problem is not Mozilla specific. It's that our legal and political systems are now corrupted and offer no safeguards to prevent this type of fraud from taking place. Tech companies from the very beginning have been given carte blanche to lie, cheat, and pivot any way they please; to betray user/customer investment and change their entire value proposition on a dime. That was the growth and funding model of tech startups; build users by offering product for free (at a loss) until they become dependent on your product, then bait-and-switch. When companies are consistently rewarded for this, and there are no meaningful financial or legal reprecussions, I see no reason to believe that this will change any time in the near future.

[0] https://www.thunderbird.net/ach/about/