Exactly how harsh are the chat rules?

[Vav2021]

RP has a time and place. unless the entire group in an instance is your RP group, dont do it in duties or roulettes.

downtown Limsa I doubt many would care...

any self-respecting RPer would not bring RP into duties, roulettes, or dungeons because it would be a distraction and would inadvertently force non-RPers into an awkward situation.