And you keep mentioning performance issues, perhaps you could give more fine details as to how severely performance would be affected, simple saying it would be affected is not enough.
if you have fantasy enabled, the services have to scan each line written in a channel.
if you have 1000 users writing a line all 10 seconds will give 100 lines a second.
the services have to scan those 100 lines for commands in 1 second.
but if you add color features aswell you will have atleast the doubled calculating work.
if your services produced 1% load on your cpu before, it will produce 2% now.
but you want to have services with a good perfomance right ? they should react fast if you write a cmd.
but if you add to much of those features, they CANT react fast.
Thats why probably NO core Developer of Anope would implement it.