If their post history is the same, maybe it can be reported both, mentioning this in the report, to let the mod have a look too and decide if this means spam or not...
What happens if we report a user with copper membership? (Paid membership). I haven't reported any copper yet. Does that mean any kind of protection against vulnerability?
The only factor rank has when I'm reporting is whether I check their history or not to see if they are making the same type of replies I'm reporting them for which I'll then leave a comment like "Please check this users post history".
As newbies don't generally have too many posts. Anything Jr member, and above are more like to have a post history. Although, I take a look at their post count, and that usually is more of a factor for lower ranked members than rank itself.