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It is they are working on a new UI for it but an upvote at Palnet also upvotes the same percent at steemit so it make sense to post on Palnet and earn rewards on both. Also you should have claimed your airdrop if you had steem powered up. It would be in your steem-engine account I wrote about it here - https://steemit.com/palnet/@bitcoinflood/check-your-steem-engine-wallets-for-palcoin

Interesting. I'll try to claim it now!