It can also be a case of confirmation bias however. I have seen some people that have seemingly made some apparently near perfect predictions about wild far out

It can also be a case of confirmation bias however. I have seen some people that have seemingly made some apparently near perfect predictions about wild far out things only to check their back record and find 1000 misses on other things. If you have the time to dig through these kind of site they can be really cool and useful however it is usually only in hind sight that you can figure out what was really worth paying attention to. I am not down on ZH, they do some really neat things, it is just that it sometimes they need a little boiler plate warning on their content.