Another thing....even without profiling them, if they call a second time within a couple of days, that's $1. Brring can also be phone-phreaked a bit as it will pick up any number you program into a phone as being THE number, so you can spoof phone numbers of people who have called you and get that second call back from them. Look around the net and you'll find some sites that let you input any phone number and call another number you input. The TV series Nip and Tuck is one such website. This is a purely manual method obviously.
I don't think this can be scaled upwards too much or Brring will simply not pay you. I have access to a VOIP phone system and could do all kinds of number-spoofing and hundreds of Brring accts, but somebody has to get a check from them and unless they are really not paying attention, they'll figure out that John Smith and some DBA's and his family members are all really the same dude. I think the only way to scale it would be enlisting the help of others and giving them a cut of the check they get from Brring. Of course, they might just keep it all and say FU, too
I don't think this can be scaled upwards too much or Brring will simply not pay you. I have access to a VOIP phone system and could do all kinds of number-spoofing and hundreds of Brring accts, but somebody has to get a check from them and unless they are really not paying attention, they'll figure out that John Smith and some DBA's and his family members are all really the same dude. I think the only way to scale it would be enlisting the help of others and giving them a cut of the check they get from Brring. Of course, they might just keep it all and say FU, too