Facebook friend bomber

Hey guys
Have been creating 5 accounts per day from 1 ip. So far has been good
Lately, FFB has been giving some problems

For captcha ids I get a warning after 11 adds
For non captcha ids (relatively old), I get a warning after 20 adds

All adds are with a gap of 15+ secs. No friends are added on a single account on consecutive days

Have lost 4 accounts in last 2 days.

None of my accounts were banned before the useage of FFB? What am I doing wrong.

You need to start using proxies because FB is linking all of your accounts to one IP.

u sure about the IP part?? many countires have static IPs - wouldn't this affect them as well?