I have no idea about the technical part of Gulden. When I heard of it, it was pretty clear to me that this was a name-trick. The Gulden was the former fiat money of The Netherlands, and was in general considered a strong currency (like the Deutsch Mark). It has been replaced by the Euro, and since many years, the Dutch are becoming more and more Euro-critical. So a "digital version" of their beloved former Gulden may have a nationalistic and nostalgic appeal.
My impression was that this was the main "value proposition" of the Gulden: to seduce nostaligics into it, as there are quite a bit of them. But it may be that the Gulden has also really something to offer, apart from sentiment ; I don't know. But I would be seriously wary about the fact that the name has been chosen to play on a sentimental chord.
Do you know there is a book out there that list all the currencies that have existed since a certain point in history (is does count a long way back, centuries). The dutch Gulden was actually the one currency that didn't fell in 2000 years, but we gave it away for Euro. Gulden was longest existing currency that didn't go boom and lasted hundreds of years. We will rise again