The biggest issue is that companies which depend on something like OpenSSL do not do enough to sustain it, leaving its maintainers working often uncompensated,

The biggest issue is that companies which depend on something like OpenSSL do not do enough to sustain it, leaving its maintainers working often uncompensated, for the benefit of people making far more money. Would it be a rug pull if those maintainers simply burned out and decided "I'm moving onto something else," Leaving the project in limbo, with nobody maintaining it? Or maybe they really do enjoy working on the project, but it doesn't pay the bills, so they have to look for an alternative way to monetize it, and that way can continue working on it. My opinion is that unless you genuinely just enjoy working on something and sharing it, you are not obliged to do unpaid labour for the benefit of anyone else. Companies depending on FOSS software should be contributing financially to each and every one of them. This is the real shitty behavior - the expectation these companies have of getting bugfixes and improvements for free. In the Mongo/Elastic and Amazon cases for example, this is far smaller companies being taking advantage of by a giant. IMO they were right to "rug pull" by relicensing under SSPL. Amazon can easily afford to maintain forks for these projects - but it probably would've been cheaper for them to just contribute financially, and they wouldn't have needed to switch from AGPL. Anyone who works on OpenSearch without compensation is a fool - essentially doing unpaid labour for one of the wealthiest companies on the planet.