A poster asks a question that qualifies for closing. For example, take a question dealing with an unsupported distribution.
I vote to close as off-topic and mine is the first vote.
Does the questioner immediately know that a vote to close has been cast with the reason
"This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow."
that ultimately appears?
My question is not about the poster discovering my "identity". It's about wanting to know if I'm adding any value by adding a comment of my own such as:
This site offers support only for official flavors of Ubuntu. XXX is off-topic here but questions about it are welcome at https://unix.stackexchange.com.
I feel that a comment such I've posted above would be superfluous if the questioner can immediately see the official comment.