You're shifting the blame

I don't see how I am...

Ernest promised a quick resolution 2 months ago and didn't follow through.

I understand that, and it's unfortunate that he's been unable to do so thus far.

That fact does not affect the validity of the original question IMO, especially when the complaint is originating from multiple people who each have equal access to implement the desired change.

I don't use kbin, I only use Postmill, so expecting me to clean up his mess isn't a reasonable ask

I'm not expecting a specific individual to "clean up his mess" really. There are multiple people being vocal about this issue besides yourself, from my perspective any one of these individuals can do this and move on.

It would take him less time to copy/paste the license file than it took him to write his latest feet-dragging comment here

While this is true, I think posts like these are also wasting his time needing to crowd control a post discussing how he should be using his personal time. These kind of interactions are really demotivating and draining for any developer or individual

Even if he went and did the change himself as a result of this post, people would still "why did it take you this long" and the like IMO