First, I would like to say the item database is awesome. Automatic pricing and universal autobuying lists are awesome! It's one of the most important features that differentiates Neocodex from other conventional cheating forums.
However, it does has its problems. Many people have noted that profit margins on items, usually low priced ones, based of the database are at times pretty off. This is due to the mass deflation that has been plaguing the economy, and the fact that the database isn't updating as often as before. So, this means that the relatively low priced book I bought 20+ times that Abrosia thought had a 150% profit margin, 1500+ profit has actually 0 profit. This is kind of a problem. In addition, when I went to price the item using NeonAP, it updated the price to the market value in my shop, but kept the price of the book at a grossly high price (while crediting me for the pricing yay).
In conclusion, I believe that there is a need to introduce human pricing for buyable items. Automatic pricing is really cool, and we should keep that, but introducing human pricing will allow users like me to correct badly priced items. To prevent abuse, we can limit this function to users with more than 500 posts, just like with pricing unbuyables. Alternatively, we could have a system where humans can tell the database to prioritize which items should be priced.