Not strictly true. You WILL GET A HUGE BANNER AT THE TOP OF THE PAGE saying more or less that you ARE PRESUMED A SCAMMER to persons up to member level and if you are not logged in.
So yes he just got branded a scammer pretty much.
No, the huge red banner is only triggered by old feedback. New feedback does not do anything to trigger the banner. I made an archive of the thread in question.
http://archive.vn/tjkB9 (When I use the archive website, it always displays what a user will see if they are not online.)The user has no banner.