Why Do Drivers Use Turn / Lane Change "Confirmation" Signals?

[Crew Chief]

My pet peeve is drivers who are passing me on a multi-lane highway and turn on their turn signal before they are clear of my vehicle. My assumption is that they are ready to come over as soon as that turn signal comes on... Especially the big riggers that are moving into my lane before I can even reach my light switch to clear 'em over...

[ferretkona]

Some of the drivers who have barely learned to use the blinkers feel that just gave them the right of way.

[macroy]

Originally Posted by ferretkona

Some of the drivers who have barely learned to use the blinkers feel that just gave them the right of way.

Bingo - this is my biggest pet peeve. Those who think that cutting you off is okay since they've put that signal on.