It would be neat to send a message like you were responding back to that individual.

I think we should parse, and if the user puts in a specific string like in their message, we replace.

It is easy to pull the name of the person(s) receiving the achievement, I did that for preventing self congrats. However, what about the scenario where multiple people achieve the same achiev at the same time, say in a dungeon run? I don't know if there is a way to catch those events, store them, determine if there are multiple events at the same time, and then use a group pronoun?