Personally, I don't care a whole lot what other people are doing in game. My suggestion was just a balanced approach to the "allow macros"/"ban macros" debate contained herein. But if this team isn't making money off accounts, your argument about tolerating multiboxing is irrelevant--in fact, more to the point, multiboxing and macroing is contrary to the team's interests because bandwidth is rather less than, say, EA would have available--why allow it to be wasted?
"Freedom" is irrelevant too. There is no freedom on a private server: the administration decides your rights. Even if I were an admin, I wouldn't claim to be "telling people what they like", I'd be telling them what they can and cannot do with my resources (or resources that I am entrusted with monitoring, if I were not the owner thereof), and if they didn't like it they could stick it wherever they liked. "It's a free country" (debatable anyway) is an utterly meaningless statement on a privately-run server.
I really don't think the team should punish either behavior in and of itself. But if it comes to a point where other players are disrupted by it, then action may be necessary. It would be wise to have a procedure in place to determine the moderation rules. My suggestion was only one possibility. (Others include outright banning of macros--which is typical for the industry, WoW notwithstanding.)
I don't care if someone is multiboxing.