Can anyone explain tailgating?

[morethanpretty]

I hate tailgators especially since I was rearended. They make me nervous and also since I'm normally driving 5-10 over they piss me off. I like to slow way down and either force them to go around me or get the hint to back off. What I don't understand are the idiots driving next to each other in both lanes of traffic, going 5 under. Those people really really piss me off, sometimes I'll ride the pipe of the one in the left lane (the fast/passing lane) since they aren't supposed to be driving there anyway. Atleast the person in the right lane is driving where they're supposed to be. I'm a chronic speeder though, I hate having a car infront of me and sometimes I unconsciously tail them, but I normally realize and back off. I've gotten pulled over 3 times for going about 10 over, and once for going 19 over. I got a ticket the last time I was goin 10 over.