The community has decided that answers in newer languages can now compete in code-golf (they were previously required to be marked as non-competing). However, now and then I will still come across an answer that hasn't been updated with this rule yet, so it is still marked as non-competing.
I have been both the sender and recipient of comments asking to remove the non-competing note from a submission, and I am wondering whether these comments are necessary.
Should we try to get permission from the poster before editing? Should we just edit it out without notifying them? Or should we just leave them?