I think it would be ridiculous to remove the Olhausen from you profile if you are not breaking any forum rules. Do the people that want to complain about it scratch the manufacturer emblem off of their cars, lawnmowers, motorcycles, shoes, or clothes so that they are also not guilty of advertising? How about the signatures on their custom and "CNC" cues? I highly doubt it, I see no justifiable reason for you to be expected to do the same.
There is a difference between leaving something on a car or adding something to a post. I have owned a handful of paint and body shops though and anything of mine even if for resale shed all of the badging that came from a dealer. I bought a new truck custom order and as I was picking it up they noticed that it hadn't had dealer badging added yet. They were hurt when I told them to leave it that way! If the factory badging didn't leave holes behind in the sheet metal they would have been left off too.
A customer owned one of my favorite cars, a Croonet! The letters fit either spot and he put the Coronet letters on wrong on one side. Didn't want to risk damaging the car he had just painted so when he put the letters on the other side he carefully badged it a Croonet on that side too!
If something comes from the factory or custom shop a customer couldn't be expected to take it off. However, a customer adding badging is bragging and I would have to say advertising!
Oh yeah, I bought a Discover Canoe, had decals in three or more places. They pissed me off and I carefully removed all signs of branding except the serial number!
Hu