I would cash out with an ATM card obtained with fake documentation / stolen identities if required, and shipped to a location that I can not be tied to (or to someone I trust to destroy their copy after transferring it to me, and then have them message me an encrypted copy of the magstrip data so I could encode it to a blank card and never have to physically pick anything up). I would also cash in anonymously, I hear there are IRC channels where people offer bitcoins for cash in the mail and such. At the very worst I would try to find a western union accepting exchanger and send with no ID or fake ID. Or maybe I would buy some greendot recharge packs and offer them for bitcoin. There are a lot of options, and they all have different levels of anonymity, but I can assure you that I would not cash in or out through a bank account under my real name. I don't care if it is absolutely legal to buy and sell bitcoins, or not, I care if I will be linked to a drug deal or at risk of being charged with money laundering if I use a mix. Not to mention none of the mixing services are using blind mixing algorithms so the anonymity they can provide against the mix operator is zero.