if you put them where they say they should go then most of them are over the hole where the heat pipes go from the cpu through to their heat block on the outside of the case! so they’re just hanging there doing nothing. still, some of them are okay.
also, they’re not very securely attached and there’s dire warnings in the instructions about knocking them off. but i found it quite difficult to fit the motherboard into place without knocking them a few times.
anyway, looks like it’s all okay.