I really do understand that rear-facing is safer than front-facing (I watched the video clips), BUT... you're making it sound like turning your child to the front is the same thing as using no car seat at all, which of course, is NOT! "Why not skip the car seat all together?" - that makes no sense!
We all know that a car seat - regardless of which way it's facing - is ridiculously more safe than no car seat at all. I know what you're getting at, why not be the MOST safe you can be, but if that's the case, then why get in your car at all? Really, I do get where you're coming from - I am definitely not turning DS before a year and in fact, I've completely reassessed turning DS forward before the 33lb. maximum - but I also don't think that front facing before the weight/height maximum is the same as using nothing.
As for 'why even drive at all' - well, I'm sure most of us could always improve on safety. Not everyone can afford the BEST carseat or the 5-star safety rated car. We make the safest choices with what we have. And leaving a carseat RF seems like a very easy, ZERO cost way to do that.
I'm glad you're rethinking things. I turned my son around at 20lbs/1 year on advice of my doctor back in 2000 and I am just so thankful we didn't get in an accident! My son has hydrocephalus and has a disporportionately large head. If any child should have stayed RF, it is him. I shudder to think of his poor neck had an accident occurred. I know better now and will not make that mistake again. I'm annoyed that my ped gives such sloppy, mainstream advice to patients (including telling BF moms to wean at a year, telling moms of babies to CIO, etc. = luckily for DS I didn't listen to that advice)