no there is no scam it's just that the swap will be done automatically on coinexchange.io
if you have kayicoin on cryptopia
1- create an account on coinexchange. 2- select deposit from the menu and create a kayicoin wallet address. 3- select withdraw on cryptopia and send your coins to the wallet address kayicoin that you have created on coinexchange.
the swap will be done automatically on 28/02/2018 on coinexchange.io those who already kayicoin on mercatox.com it is already the new kayicoin not need swap for when the swap will be done on coinexchange.io you can send your kayicoin on mercatox is your perssonelle wallet as myetherwallet.com

you can contact me on twitter for faster answers https://twitter.com/kayicoin