My first reaction to the page was: how do I know who wrote these? How do I know whether they are right or wrong? How do I correct ones that I can see are incorr

My first reaction to the page was: how do I know who wrote these? How do I know whether they are right or wrong? How do I correct ones that I can see are incorrect (or at least misleading)? I don't see any "about this site", "who created this site", etc. I don't see any information about who authored a particular snippet. Perhaps more information is available if you log in? But it seems like it should be possible to evaluate the trustworthiness of a site _before_ sharing information with it, so I don't feel comfortable interacting with the site as it is.