[Samson]

Then I would suggest you take this up with Jason Dinkel and not with everyone else who either isn't using your code, or used it with the innocent expectation that the license it *DID* carry was accurate.

Either way, retroactively applying a license that lacks a clause allowing for that to happen would not survive a court challenge. This is something I specifically asked the company IP lawyer once when a similar situation came up with one of my own projects and I was advised in no uncertain terms that the only way a license can be retroactively applied is if it originally came with a clause stating so, like you find in various ToS agreements with ISPs. Your code has no such clause, ergo it is not possible to retroactively apply the license to existing users. Only to new users from this point forward.