the scrapper was written in newlisp (save search result pages with curl, use regex to match and collect the ids). it's probably easier to write in other languages, but that's what i knew.
i used wget and curl to loop over the ids but it's too slow because they download the whole page. later i found out about 'curl -i' (header only) and a million ids was done in about hour or two (i moved my operation from my home's 64kbps to my colo datacenter mbps internet).
my account is no longer exist (probably banned); however, i do still have a screenshot of me having 3000 female-only-friends and 70000 non-hidden-females 'look back at my profile'
initially, i talked to any interesting woman; however, later i made a strict rule to only respond to women who wrote at me. there were just too many fake female-accounts.
i got a couple of dates from this feat; however, i met my wife in a traditional catholic youth retreat. when i let her know about this friendster thingy, she just laughed. now i'm happily married with a 15-months-old boy.