Yes and no.
AFAIK BetConstruct has only submitted some of my usernames and my email address, so I will change my email address and give some of the newcomers a try. Moreover I have a dynamic IP.
As I've said in a previous thread 27.8% of the BC books I used have scammed me in a way. But in most of the scam cases the book "only" voided bets (60%) and/or returned my deposit (26.7%). That means "only" in 13.3% of the cases the book did serious damage by confiscating my deposit and/or going offline.
As long as the scam rate is below 50% I will continue trying some of these books. The only books I completely avoid are those with a Turkish background.