How long untill I can really Flog them Hard

To be safe, i was recommended to run mine moderately for the first 100 hours (i had some bass drivers replaced). Damage to drives is also sometimes done by underpowering them. In your case, i cann say of course, but since you like volume, that is just a consideration. the 802D can definitely eat up a lot of power.

Are the drivers damaged because of "flogging" them?

If it's too loud, you're too old!!!! CRANK IT!!!

I don't think you're a savage, but I do think you should be using a speaker especially made for loud levels, such as JBL Pro or EAW. These are professional sound reinforcement speakers and can better reproduce high sound pressures. Enjoy the music the way you like it.

I agree with Chayro to some extent, but also have to ask how loud is loud? You can get a Db meter at Radio Shack on the cheap side which will give you a way to measure the strength of the signal at your listening position. At 100Db your getting a pretty loud sound pressure. I bought one out of curiosity you may want to as well.
I don't think there are many speakers made for Audiophiles that are capable of prolonged high spl levels, that is why I agree with Charyo . I have a pair of Klipsch LaScalas (amongst others) that can do that but they are also marketed to clubs and other "pro" venues. If it is much lower you may not really need those speakers, the sound quality is different and may not be to your liking.