For one, hosting costs money. It's a hobby project that's an enormous amount of work. It would be a huge waste of time to lay out project timeline, Rajko just keeps it in his head and works on it when he works on it. Donate if you want, don't if you don't. The amount of time and money Rajko has already put into this project is enough to throw a couple bucks if you're into it. It's just a way to show support if you can't contribute technically, but Rajko doesn't have shareholders he has to report to or anything. It's a bit more casual than that.