I tried vegetable oil, paint thinner, acetone, and isopropyl alcohol, and none of those worked on my sticky ASUS laptop. That is what did NOT work for me. It seems that many post remedies that they have not actually tried out.
Then I tried Cabella's food grade silicone lubricating spray (that I use in my meat grinder and dehydrator to prevent sticking). Significant improvement; sticky is 75% gone. And since the silicone is food grade, I can finally lick my computer and all of the problems it gives me! Surface is still a bit sticky, but way less than before. Of course, with the silicone, the shelf liner option is gone because it won't stick.
Further progress: I decided that evil chemicals sold by capitalist corporations were not the answer, not even dihydrogen monoxide, so I got something that is organic, gluten free, non-GMO, antioxidant, detoxifying, alkaline, and natural. ArmorAll Tire Shine, also a silicone formulation. Spray it on, rub it in, let it dry, and then wipe the surface with a cloth. Sticky is 99% gone. Applied a second coat, smeared it around by fingers, and let it dry overnight. Sticky is no longer a problem! That is what worked for me.
Now I wonder if it is a good idea to use this stuff before the rubber starts to decay...