nostr:npub15dqlghlewk84wz3pkqqvzl2w2w36f97g89ljds8x6c094nlu02vqjllm5m was suggesting that orange checkmark idea for social media back then. In his idea you would put a certain amount of sats to get a checkmark that you could lose (including the sats) for spamming etc. It then could be filtered to only see orange checked people. Also for dms etc.
I think we do have something better with zaps now. Even if not everyone has it, there could be a tab for people who zapped a certain amount or a certain top amount (not too high but higher than what zapper bot would zap), which would make chance higher that they are actual humans. It might incentive more people to participate in v4v zapping, too in order to be part of the "zap verified" global feed.