The irreverent WallStreetBets shtick is out. Earnestly sharing ideas in person is in. Retail traders are increasingly turning to exclusive investing clubs to get ahead. This post originally appeared in BI's daily markets newsletter, First Trade. Sign up here. Since the GameStop frenzy of 2021, the perception of the average retail investor has been one of cocky irreverence. They're a generation that thrives on spicy Reddit posts, meme-y avatars, and an unabashed thirst for risk, or so the stereotype ...