I disagreed about the part that the DSM 5 is to blame.
If you were diagnosed with one thing but decide to tell people you're diagnosed with something else, that difference doesn't appear to come from the DSM.
Asbergers is not a thing anymore. It has been folded into autism, which is now a broader diagnosis than it once was.
I'm sure the powers that be had a reason to combine them; and I am no where near qualified to have an opinion on if it was good idea or not. But expanding the definition of autism to include milder forms was 100% a choice that was made.
The fact that the public perception subsequently shifted to view autism as less severely disease seems to me to likely be causally related.
If you were diagnosed with one thing but decide to tell people you're diagnosed with something else, that difference doesn't appear to come from the DSM.