I don't understand what you're trying to say?

"serious hobbyists" would've already heard about Braid and be in the "played it already" category

Even if you're putting in 10-20 hours a week, you still have to pick what you play. When Backloggery was more popular, it was quite common to see profiles with dozens or hundreds of "I want to play this when I have the time".

Asserting that you will not play a game ever if you haven't played it in the 5 years following its release is ludicrous.