I've only been on for a few days, but from the many comics I've seen I've noticed most people tend to do their comics in a sort of "Far Side" way: they may use the same sprites, but it tends just to be different characters in different jokes every time.
Series do exist, but usually as self-contained things (clearly marked in the subject header) and often are made for comic competitions.
Now, when I first came on, it didn't seem a question to me to create a more "sitcom" comic, with regular characters, continuing and returning plots and so forth, but few other people seem to have them: unless you count Asian Girl appearances or Tobor cornholing, which I don't because I tend not to enjoy them much. They stopped being funny very quickly.
(Didn't stop me doing an Asian Girl strip, but, anyway...)
So, I was just wondering if people's decisions to do their comics as they have was conscious or, like me, something that just sorta happened. Plus, as with most people, I just want people to read my message then click to look at my comics sectio out of curiosity. :>