If it's really that good (I've never tried it), then surely a couple users would be willing to donate a few bucks for it to be signed (especially seeing as lightroom costs what, $150?). $99 isn't quite pocket change, but it's not big money either.

Reading the link, it seems like (some of) the devs have philosophical objections to doing that; fine. But philosophical objections aren't the same as "it can't be done".