Any emotes that could be used in a rude or harmful way should be considered as harassment, at least if you find it harassing (such as "Nice Try!") 😉!
Maybe there can be an option to mute emojis for the lobby or an individual player. They'd be emoting away but unknown to them you are just enjoying the game unaffected.
Popcap can also track how often a player uses emojis and is individually muted. These stats can be used for temporary emoji prison where you can't emote for e.g. 1 week. Maybe too far but the point is there should be solutions to this, it annoys enough people.
