Pretty straightforward concept, probably difficult implementation. Would like if people could see each other's liveries on multiplayer without having to manually add liveries.
iRacing has a solution for this through a 3rd-party integration called TradingPaints (https://www.tradingpaints.com/). You run the tradingpaints client and it downloads other people liveries from the tradingpaints website in the background, allowing you to see them without having to manually install/download/etc. No load on the server, its all client-side.
I am not a developer, and have no idea how to make something like this work, and don't know how DCS is coded, so its definitely a wish at best. But conceptually, a shared public community space where we could upload liveries and an integrated app to allow us to see them would be very awesome.