I think it's perfectly fine if the block founders don't want to sell until the exchange is ready, it's their decision to make. Nxt isn't officially launched yet and if I was a block founder, I would also wait until launch. The currency is 3 weeks old and there is plenty of Nxt to buy if interested. I don't this should frustrate BCnext or anyone for that matter.
Also, I've noticed more distribution among top accounts via block chain explorer in the last week, which is great. Think of this way. If all block founders were selling large amounts of Nxt at a cheap price, we would have several 1-3M Nxt hoarders and ultimately the same problem. I'm actually glad the potential hoarders is limited to 73 block founders (20 founders in reality). When demand picks up, client is officially launched, source code is released, the block founders will start selling.
In my opinion, for Nxt to be a healthy, vibrant, and fair currency, the top account holders would have around 5-7M Nxt maximum.
Moving onto the topic at hand. I think it's very important that we have a fund for development projects. I have personally donated to several individual developer projects, and giveaways. I don't believe in paying for marketing, branding, etc... at this point.
I would propose that we start a BTC and Nxt fund. The BTC fund will be used to buy Nxt from willing block founders for the specific purpose of development and hopefully at a discounted cost. The Nxt fund will go directly to developers of various projects and authors of instructional guides, etc...