all great suggestions!
1.) an in game messaging mode. They use the same chat server after all.
2.) Allied Channel! I wanted this since assimilation
3.) team chat. (I thought it works? I tried team chat and asked my enemy if he saw it, he answer in the negative. I used "ctrl-enter" not the "/team" switch)
4.) (this is more of a pipe dream...) fix the chat so that all players can use the "tell" commands. As is, there are situations where the player get a long string of numbers. (ThreeDot14214795348594768943) after their name, and renders the tell command inoperative. It's been here since SFC2...