…I just saw this whole thread.

I'm a little unsettled by it, and here's why:
the OP doesn't seem to reveal what "dog", if any they actually have in this fight.

That is, why do they care?
For that matter, if they do care, why is it their place to assume offense on anyone else's part regarding this issue?

Are aspies or individuals with aspergers unable to observe the world around them and then make judgments for themselves regarding those observations?
Not in my experience.

Why would any sentient, capable individual need a spokesperson thrust upon them?

Perhaps the OP has a close relative on the spectrum and that is the root of the offense they feel when they hear this particular word- though that doesn't completely explain the reaction, it might make a little bit of sense.

To be honest, I'm actually surprised the OP was able to assume offense on behalf of a demographic they are not a part of- and it seems they did so pretty easily.

As for me, I have variously been called "aspie" and "autie", though I most often [well, on the occasions that I actually happen to discuss it] refer to myself as an individual with High Functioning Autism [HFA] since that is the most precise and accurate description. Really none of those bother me. Regardless of what you call me, often it can be more about motivation and intention than anything else. Some individuals could call me by my proper name and I would consider it offensive because to offend is their standard MO, simply how they operate in the world.