Strictly speaking, the forum rule No. 15 prohibits the on-forum giveaway, but not the off-forum ones, see the quotation below. However creating fake ANN threads is surely not allowed.
15. No on-forum altcoin giveaways.
[6][e]~snip~
15.
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Specifically, you are not allowed to give people any incentive to post insubstantial posts in your threads. You can't offer to pay people who post their addresses, usernames, etc. You can do giveaways off-site and link to the giveaway page in a thread, but you can't give people any bonus for replying to your thread.
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