Of my 493 games online, all but 15 from only 5 levels are public. So I wouldn't say I am stingy with opening my games. I mainly want to protect my Golds. I only have 2 secret games from games that are not Golds. They are ones where I am developing a new trick. New tricks take a huge number of tries to get just right. I don't want all that hard work to go to waste right away.
This level took me an insane number of tries (15,000) to pick up the gold again.
I stopped opening all my games when people Alex came along. He hardly developed any routes on his own, and quickly got medals because the best routes were public.
I open all of mine because I feel that any new routes should be shown to create a challenging feel on the level. Sorry if I'm one of those mentioned in your comment Kristopher.