it's most likely server matinence, and hopefully the donation bot is coming back up again :3

Alright, I don't hate Bp, but I don't really use it for one reason: Prices are finalized by admins, so the prices are... well a little bias, and that reflects on some prices (a good example is keys here... most of the admins that decide prices for the key are key traders themselves ;D). Plus, as you said, these prices are averages, so they are almost never 100% accurate, which is what people want. I know that sounds like a lot to ask for, but to be brutal, that's what people need for trading, and Bp cannot deliver that all the time.
Also (this is a nitpick but whatever), it's a bit lazy when you say you're a trader but you're not learning prices at all.... that's like going into business but carrying around a handbook that has all your prices for your mechandise/products in it, and every time you need to, you open it and go "hmm."
Really, Bp should be used as a reference source for pricing, not a main source... but if you really need to know prices, ask around. There are hundreds of very expirienced traders that can tell you prices and help you out... well, at least SOME of them can do that lol. Also, you can just ask around unusual trade servers, since you're bound to find something out eventually, and then you have a better understanding of the market and talking to other players, compared to just going to Bp and typing in a few characters, and copy/pasting a price. Sometimes, if you want to know a price, you gotta work a bit for it :D