You're right that the underlying truth about Bitcoin is that 99% of people are in it for the money but what you fail to understand is that those 'stupid' posts are unavoidable and that it would be unhealthy to try to avoid them. 'Bitcoin' is a brand new word that didn't exist 10 years ago. It is impossible for a word (or anything else for that matter) to exist without people exploring possible associations with existing ideas. For example, guys like girls, guys like Bitcoin, it is impossible to avoid these two getting together at some point giving birth to a slew of questions/possibilities, some of which may certainly sound stupid to some. Personally I find all these associations people come up with quite interesting