I use blinkers because it is the law. I don't want to pay some fircken ticket plus I feel safer using them regardless of the Joe Hotrods out there who view them as a challenge to their masculinity. I think the law is not enforced at all.
Funny but when I was 17 and my insurance was at stake I remember getting a ticket for failing to signal. Maybe it is all a scam between State Farm and the Police Departments.