It's annoying. It's pointless. If we had a new milestone at this time I would already be working on it.
It's humliating to think my regular client is getting the same message.
Nobody wants this.
We are not children, we did not forget.
Stop this, Upwork.
I read the same issue on an Upwork discussion, they have been testing the possibilities of this option (or something else 🤔) by sending both clients and freelancer about new milestones, and even if I didn't get any notification like this, I can say its completely annoying useless reminder, because as a freelancer I know what my client needed and when it is needed and how it is can be done.
This notification will make the client - freelancer relationship worse.