what kind of community are you talking here? if it's just a community where BGB holders talk, I think they have telegram group or discord for that where you don't even need to own BGB to enter.

if you're talking about perks, the perk of holding these coins are the launchpools, these exchange usually demand certain portion of the airdrop for them as a requirement to get listed in their platform and distribute it to their coin holders.
but you also need to subscribe to their launchpool otherwise it won't count, other perks generally are just fee discount, etc.

basically like as you said, you're getting free tokens and discounted fee (maybe with tiered system) and that's it.