I started using btc-arbs just a few days ago with 0.5 BTC. Last night i wanted to see the results of yesterday and saw, that the dns could not resolve btc-arbs.com, so i tried using the ip if found over an old dns lookup table and hardcoded the dns -> ip matching in my /etc/hosts file.
The result: I was suddenly able to login (about 01:00 last night) and immediately withdrawed 0.4 of my BTCs to my btc-e account with the message you all know "it takes up to 36 hours...blabla"
Now the point, that might give some of you hope:
In the morning at 6:00 i watched my btc-e account and -> THE 0.4 BTC had arrived.
So, if they were scammers, why would they perform ANY withdraw??
That's good news. Could you please provide the IP address used for that?