I think that the worst part is that it's self-inflicted. The most basic economic theory teaches that if your economy is growing too quickly you need to slow it down (like by increasing interest rates), by the same token if it's sluggish you need to get more money in (say by lowering those same rates so people are willing to borrow).
Right now AChat seems to be entering a boom, but unless something is done they will bust. While the A$ is a fictional money it is a money and follows the same rules, and just printing more never works. Increasing prices is a stop gap measure at best since the market is so limited (what they can implement vs the monthlies getting more A$ each month).
While this is a virtual economic structure it is still a economic structure, and it's showing stresses.