I can certainly see where you're coming from on 'gamer' though. To my mind there are twin angles on this: first, all the cultural baggage that goes with 'g4mr' stylings; second, the rather condescending marginalization that goes on when businesses/academic/journalists use it as a way putting players into a pigeonhole.
Of course, I am also guilty to the extent of calling my blog 'Commuter Gamer' -- although that is probably overshadowed by the brilliance (or otherwise) of the pun.
How do you feel about the word 'gaming' as referring to the wider field/activity of games?
It was the exclusionary actions of some so-called gamers that put me off the word when I saw dudebro gamers mock women for playing games, e.g. 'lol, they only play The Sims, they're not REAL gamers", or mocking people for playing Facebook games or iOS games, or insisting that to be a "real gamer" you had to have an unhealthy diet, embrace sleep deprivation as a badge of honour, and be socially awkward. Nope! No thanks. Then I saw the marketing that went along with the word gamer that was promoting a lifestyle that didn't exactly appeal to me anymore.
And I'll bet that a ton of people happily play both Halo 4 and The Room at different times.