Bounty Earning withdrawable for only those members who active their account.
The same trick again, the site promises a lot of money and you may get but you need to activate your account in order to withdraw.
Maybe the temptation to get a big profit is what made your site a "PONZI scheme" but still the inability to withdraw makes you a scammer.
You did not even explain how the account is activated, which is a negative indicator of the possibility of claiming some personal data.