The slippery slope toward Scala's operator madness. Much of the value of a language can be its simplicity and grokability by typical devs. Please find a sensible stasis.
Checkout this list of new JS/Node.js features [0] as an example.
Will a world with the following be an improvement? [1]
• ??=
• ||=
• &&=
And don't forget the strife around the Python "walrus operator" := [2]