I would advise caution with regard to CoinFloor for a few reasons:
- It is run in part by Nefario, someone tagged as a scammer on this forum (who still owes me and others BTC from the shutdown of GLBSE).
- Given he is CTO of the site, his GLBSE security record should be recalled. There was a significant theft from that site (~3500 BTC I believe).
- Also worth considering that every single bitcoin exchange in the UK so far has been cut by banks backing.
Trading through BitBargain and LocalBitcoins is by far the most secure method.
Yes all future ones will be as well. The bank cannot verify the origin of the BTC so cannot satisfy their anti money laundering requirements. As soon as they find out what the exchange is doing they will freeze the accounts.
Here's a scenario:
Liquidate a majority of the funds in the exchange.
Contact the UK banking institute and have them freeze their account.
Claim to their lucky clients that all is well, just a glitch about to be settle.
After a couple weeks, claim it's worse than they thought, but all it looking good.
After a couple months, claim the bank is playing hardball with their money, and somehow hacked the exchange during an audit.
Close shop.
Profit!
In about a year, use the same Montley Tools with different titles and start another exchange.