I just upgraded to macOS Sierra and the pop-up prevalence is driving me crazy.
I am using a 2011 Macbook Air with only 256GB SSD space, and have consistently had 10GB or less storage remaining since almost immediately after purchasing.
I am getting pop-ups saying "You only have 10.27 GB of storage left, Save space by optimizing storage". They are similar in nature to the pop-ups described in these two questions: Silencing "Your disk is almost full" notification and Disable "Optimized Storage" popup?
However, neither of these questions have answers to their [slightly] different pop-ups.
Is there any way to disable these pop-ups entirely? It is not possible for me to free up more storage on anything longer than an extremely short term basis, so that is not an acceptable solution.