Well, it makes more sense to trade open pairs, and if you can see at a glance who's going 'off line' and who is about to come 'on line', it may make things easier.
Note to Sharky et al.
These type of links get posted from time to time and then get swallowed up. Can this type of thing be posted into a 'links' page?
I know there is already a web site page, but this sort of thing wouldn't happily 'sit' in there. Bit hard to explain what I mean. It doesn't need a link to a whole web site, just a link to 'snippets'