Just me schlepping my latest article around, pay no mind:
http://bitcoinist.net/gems-the-first-social-currency-network/
The problem with this is that if people are paid to have a social network account then they will create multiple accounts (essentially farming accounts) making the network less able to earn ad revenue as the user base is not "real" http://bitcoinist.net/gems-the-first-social-currency-network/
Also any service that hold bitcoin for you on your behalf is almost always a bad idea
If you treat the account like a bank account and make it so you have to be KYC compliant then you are ok. You can make it very difficult to spam accounts in a number of ways anyway. Make it so that to register it and start receiving funds they need to verify a few things (a phone number, an email, even scanned IDs if need be). People give away a lot more for a lot less in these markets already.