Would you care to share your thoughts on this because I completely don't understand at all.
Off the top of my head, a nowhere nearly complete splurting of my take on the sitch:
-Has to do w/ emotional involvement by readers (viewers, whatever) w/ the characters. Take
this kid for example (still playing it straight, assuming it's not an elaborate prank) - clearly felt as though he had a personal insight into Beef's character worth articulating. The cobbled-together feel of the piece and all the context-free blanks he'd filled in in re: Beef's thoughts and personality suggest he sees something of himself in the character
etc etc. HE COULDN'T BE BOTHERED TO MAKE IT GOOD, OH, ANY GOOD AT ALL, BECAUSE HE WAS PROBABLY TOO INVESTED IN IT.
This emotional approach (vs. staying true to the characters and creating something other people could enjoy w/o knowing you) (esp. in the context of slash fiction) is the sort of thing that basically has given fan fiction its shameful, shameful name. Slink says he'd "rather create his own characters", and most creative people probably feel the same way; writing your Very Own Special Magnum P.I. Adventures seems like desperate fanboyism elevated to the level of unhealthy obsession.
You'd think tedious, serialized manga shit like
Inuyasha and
Dragon Ball Whatever are especially guilty for inspiring this sort of mess, but no - this has been around
for fuck*ng ever. DID YOU KNOW that people used to make / circulate fan videos (forgot what the fans called them) that were basically montage sequences of their favorite TV characters
set to carefully chosen music? Oh yes they did.
-Has to do w/ wanting more of something you enjoy. The first
Star Trek series was, what, sixty-odd episodes? But damned if they haven't gone on, like, a
zillion adventures, authorized and otherwise. Is everyone who writes
Fantastic Four after Stan Lee considered to be writing fan fiction? - No; the writers may be (and almost certainly are) fans of the source material, but the authorization and execution of the work gives them cachet.
I guess. What do I know? The motivations of people who do inaccessible things will always be fascinating.