I wouldn't pay them any mind whatsoever. With so few buy orders and the way BitFunder does its graphing, if just one person wants to sell of anything but a very small number of bonds then the price will necessarily look like it's sliding down a lot as they fill orders all the way down the buy list. However, this does not really define the market price, and the next person who wants to buy a bond has to jump back over the huge spread that's been created, causing the price to jump right back up, as has already happened.
It's basically a property of having a low volume market and BitFunder doing their graphing in a slightly misleading way. Also, they don't do their depth graphs cumulatively, what is up with that?!
Agreed, but nearly 800 shares being sold at under 0.2 - is that LabRat putting more on the market or someone selling off?
Those aren't being by sold LR, so it must be someone else. That said, they're not sold yet, and if they start selling at that price they may well relist them slightly higher...
Also, from the update it could be someone trying to manipulate the market price down a bit in order to be able to buy the bonds off LR for less, though I haven't actually bothered to run the numbers to see if this would be worthwhile, but from what I was saying before about how the low volume makes the price appear very volatile my guess is it might actually be a manipulation worth attempting... Not cool really.
See - they're all gone, and not by being sold!
I don't know what that person is playing at, but they're not sold until they're sold! All that can really be said is that someone with quite a lot of shares at least temporarily wanted to risk selling an awful lot for quite cheap. Guesswork as to their motivation I will leave for now though...