I don't necessarily agree that taking the word back would be a good solution or even possible for that matter. Bringing the culture into the mainstream destroyed alot of what it means to be an otaku. I mean, did any of you older than 16 believe way back when that good(well sorta)anime would be shown on tv every night and that everyday weekend children's shows would be flooded with it also. To a point the culture here has changed drastically and dedicated otaku should just sit back and be happy that they don't have to search so hard to find a certain series here or a figure there and so on.