If anybody can create any software anytime, everybody gets a lot of the Four Freedoms of Free Software (change it to make it do what you wish, distribute your modified version, etc), without even "having the source".
And all the programmers constantly feeding their new code into training is the contorted version of GPL'ing it.
That's going to be approximately no one in a couple of years.
And the bigger problem is that no one's actually going to make anything new that these systems can ingest. So we enter a cycle of LLMs feeding off LLM output, and a parallel decline in human cognition and creation. All for the profit of a few people. Not at all for the liberation of information.