Rescue isn't a pointless skill. It's a very useful skill - especially in PvP where it proves invaluable at rescuing a player who is trapped in the middle of a group of enemies. It has plenty of uses in PvE as well, of course. A tiny minority of players abusing the skill does not mean it needs to be removed from the game. Though given how a portion of the FFXIV community operates, I'm not surprised that small, rare inconveniences are considered to be worthy of disproportionate retribution.

More relevant to this topic itself, I'm in the camp where I'd like more direct engagement from our community representatives as well as deleted posts being accompanied by a message for everybody to see that shows why it was deleted. In the case of those deleted by a moderator, at any rate.