The correct action for this would be "Comment and Resolve", which requires an OSM account.

I'd strongly recommend you create one.  Many of recent notes in Savannah are not easily verifiable and thus not actionable under the terms shown above.  However, we strongly desire on-the-ground info from users we can cite and reach back to with questions.

Anonymous notes are most appropriate for things like business owners that can point to an existing website with a location.