I got a 3 day ban a year or two back on my main acct, but I'm sure it was because I got impatient and did two levels straight of grinding in Northrend when the quest profiles weren't doing so well out there. I'm back now and macroing again, but for leveling I stick to questing profiles, and for anything else I try not to do the same thing for more than 2 hrs at a time. So I do macro my main acct, but carefully. I fall more into the group of 'casual player looking for some help due to time' than a gold maker. If I was serious about making large sums of gold I'd keep my main account completely separate.