The theoretical concern is that some nefarious company will start making improvements and not contribute them back so that it can have access to (and possibly even sell) its own premium version that takes advantage of the hard work of the community without giving back.

Personally, I am a bit skeptical of this for a couple of reasons. First, I have a really hard time seeing any company care enough about uutils to do this. Second, continually merging changes from an upstream project is a real pain, so there is a strong incentive to make contributions back out of self-interest.

But even to the extent that there is some grounds to be concerned, it is not enough for so many people to contribute so much noise to every single one of these posts whining, as if it is attack on them personally.