Hi, there is something i didn't understand about stands. In part 3, it was explained that stands are the battle spirits of their users, as spirits, they are pretty much intangible and nothing can hurt them except another stand. We've seen star platinum's hand going through jotaro's chest to stop his heart from beating.
And yet, in part 4, 6 and 7 it seems that araki have forgotten about these rules, or maybe i am the one who didn't understand how stands works.
-Josuke has trapped aqua necklace inside a latex glove
-When blocking meteorites, stone free's hands were damaged by them
-Stone free's arm was damage by a thrown screw
-Highway Star needed to open the car's door in order to get in
-Anasui has punched a stand with his bare hands
-Anasui and Jolyne has trapped a stand inside a bottle
How does that work?