Of course it is illegal here. We don't tolerate account buying here.
So, 'Ad space' selling good. 'Account' selling bad.
Got it. Thanks for the clarification.
is there any evidences to support the assumption that restricting account sell will reduce scam?
I don't think that can be formal policy here. Anyway people will find the way to sell/buy.
But others will try to upgrade accounts artificially - increasing scam.