Nothingness: You are absolutely correct. This is a theoretical / philosophical debate, which was intended as learning excercise and not a serious game variant. Hopefully a useful one, as we have to ponder during a game (well some of us do) what we are prepared to share and when.

Whilst the exercise is rather abstract, it does bring to attention some useful points. Chaos's point below is very valid, and I too for the same reasons would never disclose my five 1s to know the whereabouts of one 5 (at the beginning of the game). Information in a game is shared piecemeal, some acquired by luck, some by exchange, and some forced. But what will we end up with in the end game?

And of course, what becomes valuable later on in the game changes for each player depending upon what has been disclosed.

You say you couldn't careless where an opponents 2s are.... does this mean you couldn't care less if yours are known too?

What then would you want to know from me for the location of your four 2s? How about the location of my base?

SL-Mark: i would expose the location of a 2 and a 1 and a bomb for both 3s

Nothingness: Well yes? But then would you offer the location of two 3s for a 2, 1, and a base? If not, you can't reasonably expect some else to accept this offer.

Simple weighting:
(2+1+base = 3) for (3+3=6)

Original offer to Chaos was (5x1s=5) for (1x5s=5), but my offer to Chaos is now (2x5s=10), a bargain surely?