That "esoteric usecase" was one reason people opposed that change. There are other concerns as well (you can find them if you read the discussion in the GitHub

That "esoteric usecase" was one reason people opposed that change. There are other concerns as well (you can find them if you read the discussion in the GitHub issue linked elsewhere in the comments). For example, it made SimH alter disk images by itself, without warning, even if you only wanted to use them in a read-only manner. There was also concern that sticking metadata right into the data itself was bad from a preservation standpoint. Also there was the point that such things should be opt-in instead of just appearing ferom one version to another, without warning. All of these concerns were dismissed as unimportant or flat out ignored by Mark. Then he went full overboard with his license change (which made a free project non-free) Edit: removed incorrect reference to the GPL