Instead of asking believe or not, why dont u state ur own opinion and articles or something to make people believe or disbelieve it
All this while media make a very vague existence evidence for big foot
Even the "clearest" pic about this big foot is very blur, for me is just like gorilla got captured on the snow field, or in the forest
And most of the time we cannot rely on media source.....is there any reason u think that it is impossible for someone to dress up in gorilla suit and exposed on the media claiming this "thing" is the legendary big foot and trying to make some money?

At least theres no scientific prove that this is exist, while u dont need any prove to say that it is not exist

I dont think it is really that large compare to other big-size animal, just abit bigger than normal human being