As others said, anything in regards to keyboard macros is bad, but S-E isn't all that sharp when it comes to such things. However, GMs tend to disregard such report with RMT. I have no clue when it comes to human players, personally I wouldn't chance it. If anything make a macro in-game assign it some wacky combo to activate and assign ONLY that to the macro key so the game sees one action, ergo no harm no fowl.