So I realize there are older servers than the one I play on and they might have players with over 300k-400k that can do the chest events, but most of the players on the server I play on are well below the 250K mark, so this Chest exploration event is pretty much a dead event. I think it would have been better if you took an average strength of a server and had the bronze chests around that number.
I also discovered this where the gold chest was lower than the silver chest strength number
I also discovered this where the gold chest was lower than the silver chest strength number