It doesn't matter if you're going the speed limit. You may feel like you're doing the right thing by slowing a speeder down, or you may feel it's your RIGHT to drive in any lane you 'darn well please.'
You're not. It's not.
And you ARE breaking the law.
Here's how it is DESIGNED to work:
You're in what you think is just like any other lane except that it's 'fast'. One of us approaches you from behind at 74mph (and you look down to see you're going 67mph and you switch to your smug 'justified' face because the sign says 65). While rather close in proximity, the driver begs you to move over.
Oh, how you should.
But you don't.
The driver tries to be patient and now cars start lining up behind both of you. There's a quick flash of the brights, and if you look up from your phone you either move over, or your ego decides that you'll be stubborn (and in some cases actually slow down ON PURPOSE). In most cases you don't even notice the signal but you just start complaining about the guy riding your bumper.
Now there's four or five vehicles lining up behind you while you have a LOT of distance ahead of you and enough room to move over. Now the sixth vehicle back finally jets across two lanes of traffic to go around not only you and the cars behind you, but but also around the slower cars in the two lanes to your right, only to find that there's no GOOD reason for you to be IN THE WAY.
Note that he used the 'SLOW' lane to do this in.
Move over. You don't have to be stubborn.
It's not your lane. You don't have to be self-righteous.
Please be part of the solution. Don't cause traffic jams and contribute to road rage.