There's ALOT happening in event chat, on top of that game sessions can run long and event chat gets very hard to search for something specific. The best way i can personally think of to optimize event chat is some kind of right click to checkbox list filter. So you can uncheck credits scooped, maybe check only system messages, or check warps, personal kills, and scooped items etc. This can help with documenting (dg's, scanning gals, and more), searching for something specific, or just what 90% of the player base would always use it for; dropping scooped credits from event chat. Maybe also add a search/find function in addition to check box of types of messages.
I also propose to, if possible, add player or ai tags instead of just names. So you will see Player-blah blah blah killed AI-name; ship (example: Player-Zaknefien killed AI-Cassiopeia [Stellation]) Event chat currently can be a bit undecipherable, this well help it tell a story; as well as with the former idea tell the story you want it to tell.
Im sure theres more ways, or maybe better ways than mine to improve event chat. What do you all think? Im not sure how hard it would be to do, so would it be worth the effort?