Where are y’all reading/finding all the extra information not shown in original post?

Hi there! In several answers to questions posted I read all kinds of additional information that I didn’t read in the posters question. Sometimes lots of information. Where are y’all finding that? Ex: I just read one the other day and what was showing in the question omitted the relationship of the loved one. Yet in so many of the replies the LO was referred to as “your father”. But that’s only one example. So often there are many other special comments that absolutely were not referenced in the question. What am I missing? Thanks!