I'm curious why people still believe in this nonsense
The site you refer to can't contain the private keys of all potentially possible bitcoin addresses by any chance since just to store them in some format would require all the Universe converted to storage devices and that would likely still not suffice. The guy who started that thread (I won't post a link so as not to promote it) is a shill who is deliberately spreading outright FUD. If the point is that the site can calculate all bitcoin addresses, I can just as well claim that the algorithm for calculating a Bitcoin key already contains all possible keys itself
The sleep of reason produces monsters
All links came from directory.io itself.