Different strokes of course, but if you fully adjust to Hawaii time you're making your trip home harder.
If you don't adjust or only adjust halfway, you get so many benefits. Easier trip home, easier to get pool chairs, easier to get dinner reservations, eating dinner during happy hour specials, not dealing with nighttime drunks, beating all of the tour groups at the big destinations. The best feeling in the world is when you visit the Byodo-In temple and you're literally the only people there, then when you leave you see a row of 20 tour buses pulling in from Waikiki and the cruise ships and you missed them entirely.
I'm not suggesting any special effort to wake up early, I'm just suggesting people not spend the special effort to fully adjust to the time change.