I have no problem helping the crew here. If they want me to lower the blind, it takes me 2 seconds to do it.

On Swedish domestic there's often a PA where pax are asked to bring newspapers with them and put in recycling bins in the terminal. The same thing here, it's no problem for me and I prefer that the cleaning staff can concentrate on other things.

I think it's reasonable that pax help the crew. After all they are crew, not servants.