If they did hire former Twitter employees, they could assign them to roles that could build on their experience at Twitter. For example, perhaps some back end infrastructure (*) that Threads could use but did not actually do Threads actions. You could hire the Twitter folks to do that and then move internal FB, Instagram, etc folks to work directly on Threads. That may clear up any issues with secrets or non-compete. Also, non-competes are much harder to enforce these days - probably even more so when you publicly fire people during tantrum fits.
- I admit I have no examples of what that infrastructure may be - I don’t have nearly enough knowledge on those kinds of systems.
