I was looking to my address at CoinsBank (AKA bit-x) and I couldn't find much about the addresses I was withdrawing to and there is also transactions that I didn't make in the first place . So yeah , could exchanges be an alternative ? (at least a cheaper/free one)?
in a way, yes it's mixing for a small fee for withdrawing however, there are few issues with that:
- most exchanges (I know bitstamp and btc-e) do not welcome you doing that at all, no rigid rules but a possibility to be asked for ID, address particularly for large amount, altcoin exchanges don't mostly though.
- There are records of everything, the main thing about mixers is not keeping any records for the exchange, but here there are records for the incoming and the outgoing tx's accessible for the website, as well as even potential identity information, Therefore people doing mixing for large orders would mostly prefer using mixers and paying rather than exchanging websites
I wouldn't harbor much hope on this
I remember when some dude involved with mixer services admitted here that mixers do keep logs (at least, for some time) of all transactions that they have processed. This is required if a dispute should arise between the service and their clients. Other than that, if a mixer is taken over by some government security agency (or even created by them), they will keep all logs of all activity. If you are in a money-laundering business and that's for real, you might not want to have any delusions on this account, I mean that they don't keep records (but that you would know yourself)