12/12: Label “important” not allowed in Gmail

I figured out today that the label “important” is not allowed in Gmail. I thought it was a problem only with my account. But then I tried in some other gmail accounts that I have and I found that you cannot name a label “important”. I get the error message: The label name “important” is invalid. I did have a label named “important” a couple of weeks back and one fine day it stopped working and I had to rename it to “important2” :).
Label important not allowed in Gmail
I wonder if it is a Gmail bug or if it is on purpose. If it is on purpose/by design, the only reason I can think of is privacy issues. If you flag emails with the “important” label, most probably it is important and might contain banking or other sensitive information, maybe that’s why Gmail does not allow its labels to be named “important” to avoid potential privacy issues.
Let me know if anybody else has the same issue.
Related links:
Gmail Help – Using labels
p.s. Today is Dec 12, hence the 12/12 in the blog post title 🙂