There was also a third forum user,
Kryptoverdienst, who had only made a single post in the 'big wins on FreeBitco.in' thread over 4 years ago. His account shows he logged in a few days after winning the prize, I'm guessing he was probably getting a bunch of email notifications from forum users trying to message him.
I wasn't aware of the other two forum members who has won the Lamborghini from Freebitco. User 'fbtclam' had won it from the second round. 'TheQuin' said that he is an active member of the forum who used newbie account to hide his identity. And user 'Kryptoverdienst' has won the Lamborghini from the 5th draw. He is a newbie user who has made only one post about his $20 faucet win. The latest winner, 'soslex' is quite active in Freebitco thread. Therefore, we have seen 3 Lamborghini winners in bitcointalk forum out of the 7 winners. That's quite surprising.
I would say that it is indeed quite surprising because if we compare it with the weekly lottery winners which happens every week,very few members of the forum have posted there that they have won the draw,and seeing that out of 7 rounds which happen every 6 months to have three winners of the forum that won the Lambo which is really surprising.
Most probably it is this way because they gamble a lot and accumulate a lot of such Golden Tickets but by doing so they should have also accumulated a lot of lottery tickets as well,yesterday I played 0.001 in multiply Bitcoin and got near 16.000 RP,near 7000 lottery tickets and 4 GT tickets with just that amount,so imagine these guys who gamble at least 1 Bitcoin,they should have at least won the weekly lottery once I believe based on the statistics of such huge wagering.