As long as the RP is kept to the more private channels (FC if it's an RPFC, RP linkshells, etc) and not plastered in the public channels (Say, Shout, General, non-RPFC chats, etc) you can do whatever and I won't care. If you're going to do a dungeon or trial with RP restrictions you best make your own group. No one wants a party member that's needlessly handicapping themself. Unwilling participants are often the unruliest as well and for good reason.