Based on the info here in the comments, it seems that pseudonyms are any names other than FB logins.
Perhaps this could be as much an analysis of the quality of a comment left by your typical FaceBook user. I know that as the Shepard of my own digital identity I'd much rather register www.myname.com and have a blog than use FB on a regular basis. Perhaps those of us that have been posting online for longer still live in the days of 'doing it ourselves.'
It wouldn't be surprising if FB adoption is higher among web novices than web pros simply because FB wasn't there when web pros started. This is then reflected in web pros leaving more useful comments for a variety of reasons.
In addition, as other commenters point out that pseudonyms are not just another form of anonymous posting, often with more personality than the poster's actual name. Being forced to give a real name requires a lot more commitment from many posters.
Perhaps this could be as much an analysis of the quality of a comment left by your typical FaceBook user. I know that as the Shepard of my own digital identity I'd much rather register www.myname.com and have a blog than use FB on a regular basis. Perhaps those of us that have been posting online for longer still live in the days of 'doing it ourselves.'
It wouldn't be surprising if FB adoption is higher among web novices than web pros simply because FB wasn't there when web pros started. This is then reflected in web pros leaving more useful comments for a variety of reasons.
In addition, as other commenters point out that pseudonyms are not just another form of anonymous posting, often with more personality than the poster's actual name. Being forced to give a real name requires a lot more commitment from many posters.