We removed GDCoin because they failed to provide us with the source code properly when we requested it three times, they were fully refunded for their votes. Other than that, we have only temporarily removed (24 hours) three other coins for bot voting and since then we are removing bot votes (NOTE: this does not mean removing real votes!) 2-3 times a week as mentioned.
Didn't you permanently remove Coinye because somebody was cheating with a bot?
I think it was harsh for the rest of the people holding that coin.
Anyways, nice and fast exchange you have.