Making the community more professional doesn't mean toning down hype, it means being more organized.
Someone with an noninclusive attitude like you provided is who I wouldn't want to go to a tournament with, especially if I was just getting to know the game.
My attitude is this. "Here is the Melee community. Lots of great stuff. Some stuff that some people don't like. You like it? Good, lets play."
I bring people into this game every single day, and have been as successful at it as anyone else with the obvious exceptions, and I'm not even a big tournament winner/pro-level player. What works in person is being interested in the game, constantly looking for players that are excitable and might be interested, making sure they play while teaching them as much as possible, giving them a chance to enter the community, and letting them decide how much they want to be involved if at all. When streaming I attempt to explain what people find confusing, talk about what the community is like, and direct interested players to Smashboards.
Nowhere in there do I put on a suit and act like smash melee is some fraternity with a secret handshake and a high-dollar entry fee. Most of us are intelligent, almost all of us drink or smoke socially, and most of us know that the Melee community is laid back and overall gives few f*cks about acting professional when the truth is that we are playing a mario game with 0% current marketshare, and has 0 allignment with the current trend of video games.
The only people that I have a noninclusive attitude towards are those who have watched our videos, been to smashboards, and decide that they want us to change for them. If they don't like who we are because we don't put on our try-hard ties every morning, then they won't like it here anyway.