If you find it enjoyable or interesting, it doesn't feel like work. This is similar to the (illegal) stock market tactic of 'painting the tape' - colluding with others (or an alt account) to give a false impression of the status of the market.
Back on live, I engaged in every method of generating inf that I could think of or heard about from others - manipulating the AH, AFK farming PvP recipes, flipping, etc. It was a hobby. Not a lot of straight-up farming, because I found that boring. Nowadays, I don't play as much so I don't bother working for inf. As long as I have a few hundred million at any given time, what's the point? Back on live, generating inf was part of the game for me. Like badging.