Pseudonyms are a fun one. Check out snoopsnoo.com . It's a site that using extremely primitive language parsing to create a profile of Reddit users. It's absolu

Pseudonyms are a fun one. Check out snoopsnoo.com . It's a site that using extremely primitive language parsing to create a profile of Reddit users. It's absolutely unbelievable how much we give away about ourselves when the bits and pieces are collected. Factor in linguistic analysis and I think it's safe to say that the privacy enabled by pseudonyms rapidly approaches 0 as your length of time using that pseudonym grows, even if only on a single site.