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Ha ha... basically it is an ICO called Vice (there tag line is: "get paid to watch porn") and in the white paper (available in the link above) they explain that they will be giving a portion of the Vice ICO coins to Steem holders of record at a specific block on the Steem Blockchain. (They are giving the tokens to Steem holders because Vice is built on the Steem blockchain) Well that block occurred today and the Steem holders at that moment were recorded for the distribution of the Vice tokens. From calculations available in the article it appears that for every Steem you held today during the specified block you will receive 1.52 Vice tokens. So for example, you had 1108 Steem today so you will be receiving 1684 Vice tokens. The Vice tokens initial value will start at $0.05. (but if porn catches on it could really increase in value... ha ha) Because these are free coins its called an airdrop and although this is not a fork its similar to the free Bitcoin Cash and Bitcoin Gold coins which were given to all Bitcoin holders during the Bitcoin forks.

More info:
https://steemit.com/steem/@fknmayhem/vice-org-revolutionizing-the-adult-streaming-with-a-steem-smart-media-token

Thanks for the info. :D