OK..I've made the account just to post this.
I am into Gulden for a long time already and followed them pretty much every day both in terms of development and price action. I am certainly not exactly a whale in this market, but I do hold about 200k NLG which I've struggled to accumulate all this time. At this point I am quiteclose to give up this project and sell everything. It is not because of the price, it is just because the development team is not reliable in terms of delivering. Those who follow the project and are honest with themselves know what I am talking about. The truth is that the word deadline has no meaning for them. They can post a roadmap on the website and just update it for as many times as they need, without any notice or explanations. There is no guarantee about anything when it comes to sticking to a predetermined timeline. If anything, someone will write on slack something like "it was just an estimate timeline" or so, even if that timeline is missed by A LOT, not only by a week or two. The problem is that some people invest in a project based on roadmaps and their estimated implementation time. You cannot just say "yeah, whatever, it's ready when it's ready".
So for everyone who is looking to invest in this project: it is not a scam, it really has a good potential, but be prepared to get frustrated and annoyed by the way this team works and communicates. They really don't have much consideration for keeping their word or for any kind of criticism.
That being said...I don't know what I will do, but for the first time I really started to consider alternatives (and yes, I am sorry for not doing this earlier).
I also understand your frustration, but I really advice not selling at this point.
If you are for a long time already, same as me, you *know* that the price will raise, like, a lot. It may be in a week, two weeks, a month or a few months, but it will raise.
So what's really the point in selling now at the current dip? Unless you really need the money in Euro to use for something else that is urgent, there's no point in selling right now, you'll just lose money in the long term
Wait till it pick up to speed again so you can make a good profit. It's just my 2 cents of course, do whatever you wish, but at the current price, buying (or holding if you don't want to spend more euro) is much more smart than selling.