When there are 40 plus pages in the Auction house under "ingredients", it tells me that there's a time for a change. How about separating them, the same way that armor, jewelry, weapons, etc. are separated? It would make everything easier for both buyers and sellers.
One possible way to do that is as follows:
Ingredients
Green Steel Formation
Green Steel Upgrading
Dragonshards
Epic
Sentinel (House D)
Seasonal/Special
Other
Again, my categories may not be the best way to break it down. The idea I bring forth is to no longer make someone go through 40 pages when they are looking for something. If we want the auction house to work better, this is one way to help. Thanks for letting me share.