Great Point. There is a transfer fee, but it is minimal. Given that the coins are worthless, the fee is totally going to be worth more than the value of the coins. Since, you bring it up, lets run the numbers. With BTS at $0.25 and the transfer fee of 0.01662 BTS oer transfer. You get 60 transfers for one BTS or it costs about 1/2 cent per transfer. However, for the cost of a dime or a quarter you cannot have to see them and you can help warn others. You can use the coins as a very small strike back against the scammers.
RE: How to get scam coins out of your BitShares account.