Not sure if it could be worked in as a change to the guild points or a new type of point system entirely, but I would like to see a system where you could turn in any synth from a certain craft to the guild for that craft for points. Then have the ability to use those points to buy ingredients for higher level synths as well as other things.

Would help with the rut levels you sometimes get caught in when either the ah is not selling hard to obtain ingredients, or the ingredients are insainly overpriced. It would also give people a reason to craft and farm older gear / items / ingredients and sell them on the ah, if others could buy them to trade in for points.