Many did, however it was never in the open source package. A few tried (Hippocratic license, which guaranteed that your software wouldn't be used by pretty much anyone) but it doesn't work. It is hard to only give things to parties you like - moreover, have a guarantee that you both like them today _and_ will like them in the future.
Having your work hoovered up by Big AI is no different to having your app hosted by AWS whereby AWS makes a ton of money and you get the bug reports to fix for free (if you are lucky). Only before it would take AWS to fork and maintain something like OpenSearch in such a situation.
It's a sad situation but exploitation is hardly new, and hardly unique to software.
Having your work hoovered up by Big AI is no different to having your app hosted by AWS whereby AWS makes a ton of money and you get the bug reports to fix for free (if you are lucky). Only before it would take AWS to fork and maintain something like OpenSearch in such a situation.
It's a sad situation but exploitation is hardly new, and hardly unique to software.