regarding the authenticity of densha otoko, i really like to believe it's real but even if it's not we got to see the world's most miraculous love story. i read on wiki that

"Densha Otoko's posts continued for awhile longer, but on May 17, there were posts about being on the verge of having sex, forum members made inappropriate comments (they had been expressing their opinions and thoughts about him). Later that night, Densha Otoko left the boards."

this makes me think that densha otoko is not a marketing scheme, if it were, the ppl behind it wouldnt be so stupid to destroy the "nice guy" image of densha. Anyways, it makes me a bit sad tho, there are certain things that shouldn't be posted on the internet when you're in a relationship like that