people who own all makes of cars are made welcome, just show us what you got, there's always someone who'll have information and interest in your cars.
i think the point was if your joining up specifically to sell then that makes you a trader.
however if you intend to continue to use the forum and just get rid of what you have lying around then i doubt much will be said.
As you say the gold membership has other benefits too
i reckon after browsing this site for a while you'll want an RS anyway