Thank you for this amazing post! Both LS' are exactly what I was looking for (always trying to run dungeons with people from on the server, as Duty Finder doesn't have that same sense of community).
My partner and I tend to be pretty quiet and stick to ourselves until we shove our nose into something, so that looking for RP LS is right up our alleys, too. I think we're going to just try out these LSs and then join a non-roleplay FC since all of the FCs aren't our style. (Required roleplay activity, required about of activity in general, required contact off the game.)
So, once again, thank you for this amazing post, Olofantur!
And thank you everyone else for the warm welcome and recommendations.
Eta: I forgot to mention our roleplay backgrounds! We range from MMOs, to forums, to MUDs (way back when), to chats, to Dreamwidth/Livejournal, to messengers. Tons of different mediums, all online and through text. Heh.