If you want IPs get a legal request for information, such as a court order. It's best to have a "chain of custody" so to speak when it comes to things like this. If we handed out IPs to any random who asked, and violence of some sort ended up happening, then we would be on the hook if we couldn't show a paper trail of who requested the information. If you are on the up and up and don't plan on doing anything illegal, then there shouldn't be any problems with this.
but we need find proofs to show they are the same scammer, or bittrex may not refund 350 btc to ICO investors, we are fucked by CLUSTERCOIN ico, constant dump after ICO and many possible proofs show they 3 are the same person, it is 350 btc, a big amount of money. If we don't have the proof, I am afraid bittrex won't refund us, we investors will be victims.