A random stranger /slapped me without me ever saying or doing anything to them, nevermind say or do something that'd make me deserve a slap. I definitely did not feel I was being flirted there and then.

While I do like when someone compliments my character, I'd really appreciate if emotes like /slap and /hug prompted a confirmation window to the receiver of the emote (like you do when someone wants to Trade with you). Not everyone likes to be /slapped, /petted or /hugged by random strangers, even if it's just a line of text in a videogame.