This sort of pull macros only work if everyone is on the same page about them. I have seen their sort in use before and couldn't see the reason, except for the tank wanting to be cute/feel important. I only recently understood due some other thread here that they are, indeed, for maximisers to prepare their big cannons, so to speak, but not near everyone in basic DF content is end game raider and even those who try to play their class reasonably decently don't necessarily see things the same way with min/maxers.