people selling coins

so when it comes to people selling coins which is a bannable offense what does one need to get screen shot wise to report these parasites?
theoretically someone saying "WTS coins 336 w/ for more info" (Want to Sell) is advertising selling of coins
logically anyone advertising coins for sale in any form would be selling am i not correct? as if you were purchasing something with the coins youd be trying to buy gold or a toon or something

just checking to make much easier/swifter gold seller bans

A screenshot with him advertising should be enough. Just make sure the screenshot isn't edited or cut in any way, GMs very rarely take edited screenshots as valid proof.

So just a final clarification a Screenshot of " [2. Trade] [name]: Wts coins 370 w/me for more info "
is sufficient

thankyou for your prompt reply