They really are the worst. I got in touch with them to buy one, as unfortunately they had one that I needed for business (speculatively registered on their part). When I asked how much they wanted for it, they then doubled the price to $10000 (9 characters, not commonly used words).
In the end I went with an alternative TLD. it isn't as good, and I'd have been willing to pay a decent amount for the one I wanted (even their original price, reluctantly), but I refused on principle when they got silly.
They are just parasites.