How important would you say each one of these things are when botting 10+ accounts? A little insight on your point of view would also be nice. Multiple IPs through proxies (e.g. hidemyass, lowerping, etc.) Different hardware signatures (through VMs or multiple comps) Independent accounts (different e-mails, names, servers, guilds, ...) Various activities (alternating gathering, grinding, pick pocketing, ...) Randomness (switching profiles, random jumps, random breaks, ...)
Independent accounts and Randomness are the only 2 methods I employ and I currently run 9 instances. In the last 7 months I've had 2 account bans but I would attribute those to user reporting for one and my laziness of running Gatherbuddy for too extended a period of time. Now I always run Gatherbuddy in mixed mode with BGBuddy.