I've read somewhere that X-Cash may be planning to introduce KYC for its airdrop receiver, so as to better fight multi-accounts. My opinion is that that would be a strategic mistake for some pretty obvious reasons:
1. Being originally a fork of Monero X-Cash appeals naturally to people looking for privacy - a KYC is not exactly what people looking for privacy would wish for, especially the educated Western people who are in crypto because of its philosophy and principles, and not just for the free money. Most of the educated airdrop receivers would just renounce to get further airdrops. Nobody with some brain in the West would give away their private data for 7$ a month (which is the current value of the airdropped x.cash). In other words: your airdrop community would likely lose 100% of the people who really care for the fundamental ideas behid cryptocurrencies.
2. Multi-accounters from poor countries where crypto airdrops & bounties are an important tool of survival wouldn't be scared off by a full KYC - they would just get all family, relatives and neighbours to give them IDs and docs for full KYC. Where money is deeply needed all privacy concerns disappear.
3. The final result of a full KYC of airdrop receivers would simply be that of sending a much higher percentage of Xcash to people of poor countries. While this would surely have nice ethical implications, i strongly doubt it would help XCASH's ambition of appealing to the Western banking system and financial institutions, with which it supposedly wants to collaborate. Moreover, people of poor countries who are using airdrops to survive and to feed families are more likely to have to dump immediately all their free coins, which obviously is something which affects the price. Nothing against all this happening, as I've said it's a very nice ethical implication, but I would not be eager to shift too much the balance of the airdrops in that direction.
4. While fighting fake accounts and multi accounts is a necessary task, doing that at the price of impoverishing the community is NOT a good idea IMHO. There is no perfect solution to this problem, and the end result of radical solutions might just be that of a darwinian selection of the worst people - ie the best cheaters.
This is a very good point you are making, Stalin. Obviously it would be paradoxical to make an airdrop to widen the adoption base of X-cash and then to scare away half of the community (actually the better half, as you say) imposing a KYC to get a privacy oriented coin. You have provided good food for thought.