RWT worries

so over the last 6 mouths i properly received about 15-10b and stopped afew weeks ago, i also sold some on osrs. i was planning on buying more but don't really fancy losing what i already have.

ideally it would all be on my main, but i was thinking as i only really use rs for trading i could use a new account as i wouldn't need to swap it over and just hope it doesn't get banned. is it possible that my if my new account gets banned my main will also?

also was thinking if i traded my santa hat for 10b as a way to rwt would this seem like a normal trade as it would be over max cash item? don't know much about it so i dono if that how this works?

any help appreciated.