Not sure if "competitive" is the correct term here.
I think a better question would be "how do you brag about your system and, if so, to who and how often..?"
Hard to be 'competitive' when the vast majority of hobbyist 'alumni' interactions are virtual and not in person. Yes, virtually you can share photos, video, audio - but (obviously) the quality of something audiophile-caliber shared online is no where near the in-person experience.
But you can certainly brag about your gear without anyone having to actually be in the same listening room with you...