I'm not sure if there is already a topic or poll concerning to this, but wouldn't it be a valid option to remove the threat visibility entirely after the threat segregations has been removed ?
cons:
hostiles' skill level will be a little less predictable (even tho gold doesn't really say anything about the actual skill level)
pros:
no toxicity when it comes to threat anymore
people might take care less about keeping their gold → less tryhard
less frustration about unfair matches because you just can't see your teammates' threats anymore lol
it opens new ways how the threat system is implemented (or at least make it easier) which might result in more precise matchmaking
Inparticular the last one is pretty interesting. Imagine a threat system with more than 5 different threat levels. With invisible threats this should be easy to realize and also to adjust without to change all the symbols/colors and stuff.