Yes you can buy BTCDs on Poloniex exchange and use for the swap and the elections. And the swap lasts 365 days from yesterday. But you must move your BTCD from the exchange to the ICO site if you want to participate in elections.
Read my post above with all the numbers that shows how buying BTCD right now gets you something like 60% more KMD, per BTC, spent than the end of the ICO got you.
Yes, That's your great advance. I will try to do this swap. I like this platform. I expect that I can get more earning with this project.
Thank you so much.