This was reported as part of another thread, which was moved to "Resolved," but this part is still glitched.
IGN(In Game Name): KariStar86
Bug: When you type /buy 1 wooden door, the MeepShop takes your money but gives you 0 wooden door. It does give you one when you type /buy 1 wood door, but that doesn't fix the actual bug, which takes money from players for mistakenly typing a common alternate name for an item. The price of "wooden door" is far higher than the price of "wood door," due to the fact that you can't sell imaginary items back to it, so it can add up quickly if someone is trying to buy multiple doors made of wood for some reason. I'm thinking this is easy to fix (in contrast to the enchanted item glitch), because similar problems with redstone torches, sugar cane, and other items have already been corrected. :)
Time/Date: A while now. Most recently, sometime after 10 p.m. Eastern Daylight Time on 5/1/2014.
Steps to reproduce: Type /buy 1 wooden door, notice no door. Type /buy 1 wood door, enjoy your door!
Evidence: See screenshots below.
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