The difference between macros outside the game limits, and ACT is that ACT just displays you information you can already see ingame. It's nice but anyone with an abacus and their battle log could do the same thing in enough time. Macroing content that wasn't designed to be is automation, the same thing the hoards of RMT bots do. You may use it for harmless fun in bard performances, but it's one step away from being just as bad as are gibberish named friends.