Maybe it is, but making trade has many risks. You can lose too many bitcoins in the blink of an eye.
I think the signature campaign Should be seen as an incentive
Even to enjoy the incentive of signature campaign you really have to be lucky enough to get a campaign and it will take a good amount of time for my account to be any good to get some incentive or lucky enough to get into a campaign.

. The fact is you really cannot get free money.Faucets are the source of free coins at the moment but you should spend insane amount of time to get some coins.