The main reason why people holding their bitcoins is definitely to gain a super profit. If you one of those who has been holding your bitcoin since this question appeared, then now you are rich because today bitcoin costs very high.
I can see what you mean "in this critical situation" obviously referring to August 1st and everything that goes with it, I myself have considered moving over to litecoin to ride the uncertainty at that time but i am now thinking that nothing major will happen as long as you own your bitcoin as in you have your keys, there might be a fluctuation in the price but i can't see it being anything major.