It's no "stance." It's being assertive. I've been living and working in the DMV for almost 20 years, and have put a shit ton of miles on many cars on these streets - and in my experience, a blinker might get acknowledged by like 10% of the drivers in the DMV, tops. The remainder will either ignore you and not let you in, or intentionally speed up and cut you off. That's just a fact. And that's why drivers like me end up having to be very pro-active and not even giving them the chance to speed up and cut me off. My behavior is conditioned by the 90% of selfish drivers in the DMV. If you want to yell at someone for being selfish you can start with them, because I'm not interested in hearing it.