[kiwi0fruit]

Looks like it already have been implemented: https://tex.stackexchange.com/a/28033/133525

I mean having any macros name you want, even Unicode.

So you can even have \γ macros. But if you want to write \coercivenessSymbol (even on the blackboard) we cannot stop you - after all it gives you pleasure.

My conclusion about this feature: https://github.com/kiwi0fruit/sugartex/issues/1