Ahem, you have to actually buy the game to get Early Access... it's not beta anymoreOnly ways to fight against this really is to block the /zone and /yell command to level 10 and higher. Even then it's a crapshoot. I'm pretty sure that once the early access is over, and people will have to actually OWN the game the gold spam will nearly completely vanish. Not many gold spammers are willing to spend $50 each time they want to spam their site, and risk having the account they just bought banned that same day.
Well the result will be easy to guess : closing my chat until the Devs do something serious. If some game are able to not have any or very few of those, then i dont understand why this invasion was possible.