I don't know how feasible this would be, but I think it'd be a nice quality of life addition as a toggle of some sort. Example:
[John]: "My name to the left would be a bright and noticeable colour, compared to my grey speech."
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The idea is to make it as easy as possible to keep up with who is saying what by making it easy to draw your attention to who is specifically talking. I'm sure an ocean of grey text in a populated scene has its advantages for some scenarios, but making it easy for people to acclimate to a MUD isn't quite one of them. The hunt for names makes me go cross eyed sometimes.
Just a though I guess.