Why not put all your energies into marketing Gulden yourselves?
As far as I understand it the dev team have stated that they code and develop the coin but don't market it. That's the job of the community.
When it comes to advertising with a cost involved then that's different.
But it really costs nothing to publish an article, tweet it, put it on your FB page, write to online blogs etc.
If you're worried about your investment or the lack of recognition for an innovative and ahead of the field coin then get active.
If you're not part of the community then what are you doing hanging around in this thread?
The main advantage of poor or no marketing is the coins are still available for cheap.
When you buy Gulden it's not about the development which is top notch. The gamble you taking is if they will ever market their achievements.
With 99% of the other coins they market before they achieve which leads to a higher price because traders always trade on future value. The gamble with the 99% is if they will ever achieve the development they market.
The latter strategy of marketing before development is certainly paying dividends which is why 99% go this route.