If its Octoin you are referring to, I have no reason to think that site is a scam at the moment. It has been functioning flawlessly since I started using it and their communication is commendable, I am not saying It can't turn into a scam but it is unlikely to scam us our ethereum since they will make much more if they continue selling their OCC coins right now during their ongoing ICO, continue doing their OCC investments, ethereum cloud mining and launch their OCC coins to other exchanges and profit from the appreciation of their own tokens. They will sabotage their whole platform / project by scamming us our ethereum and etz. Its not making sense to me for them to pull off something like that, at least not so soon. I also think since it is listed on the official ETZ website https://etherzero.org/ as a compatible wallet it gained credibility as I am quite sure the ethereum developers had done their due diligence before choosing wallets / developers to work with and will have credible wallets listed on their official website as compatible ETZ wallets for potential ETZ holders to utilize. If users get scammed out of their ethereum / etherzero by a compatible wallet suggested by the official ETZ website https://etherzero.org/ that will be catastrophic to the ETZ project/foundation.