My initial thought is that it'd be a great new dimension to LPF, and as long as there (presumably) wouldn't be any mechanical benefits occurring in these threads (i.e. xp, etc), I'm not even sure you actually need the judges' input on this one.
I would say it'd be best to set up these sorts of personal threads in the "Playing the Game" thread. We've already decided that's where we want our game threads to be, so that makes the most sense; otherwise these personal threads could clutter the LPF thread, and plus, we seem to have tended towards separating our IC and OOC threads.
I'll even do you one further: these personal threads could also be used for RPing character developments like obtaining an animal companion, a blackblade, or the like. I've always thought a space for that sort of thing would be really nice..
I agree with Qik and I think it's a great idea. It could also be used to write adventure logs from the point of view of your character, or scenes that happen between adventures, or expanded character history.
That's because you two wanted to receive triple TBX/TBG while running skill challenges of tiddlywinks against each other. j/k
Seriously, I cannot imagine why you would be told no. Must have been WD, HM, and AFg that wouldn't let you? Wasn't me. Whatever deviant behavior you two wanted to engage in behind closed doors is your business.
I'd also vote for it, though I feel obliged to point out that mfloyd and I made a very similar - in fact, a pretty much identical - request some time ago so that we could RP out some 2 character interaction with Pari and Garnet between adventures and were shot down. Never did really grasp the reason for that . . .