TS idea is good. but imagine just 3 `parties` rp-ing in the same system in local chat, on different locations. now, when these 3 parties all chat in system chat, you have a constant wall of text spamming. not only highly annoying, but you also miss things your `rp-partner` said.
but some rp things, can be said in system chat. I like to blab on my trader about docking and launching etc. just small things that show some rp, without creating a wall of text for everyone in the system.