The exchange rate 1BTCD=50KMD will be the same for all the period of the swap (1 year) ?
Basically yes, but the exchange rate will decrease slightly every day to account the 5% APR bitcoindark has. With this we ensure there won't be more BTCD than there are KMD reserved for the swap.
So apparently there isnt any difference partecipating the ICO (as i done) and buying now BTCD and wait the swap?
Yes, with both ways you get the same KMD coins.
Euh, this answer is rather confusing ... The fact is, an investor who invested 1 BTC at any stage of the ICO will get less KMD than someone who bought 1 BTC worth of BTCD throughout the ICO (BTCD price ranged from 0.0035x to 0.0048x on Polo). On Polo, right now, if you want to buy 1 BTC worth of BTCD, you'll get it for between 0.0038 and 0.00406. With the current rate that is a better investment (BTC-wise) than having invested 1 BTC in the Komodo ICO (even with the 35% bonus).
Let's have an example:
Right now, on Polo there is a sell order of 200 BTCD fo 0.00406 each, that is 0.812 BTC.
With the rates from the second post:
The following exchange rates were calculated after the ICO:
1 BTC = 7746,521995 KMD
1 BTCD = 50,42041779 KMD
- Investing directly in the ICO will get you 0.812*7746.521995 = 6290.17585994 KMD (the 35% bonus will get you 8491.73741091)
- Buying BTCD from that sell order and then swapping it (before the rate decreases) will get you 200*50.42041779 = 10084.083558 KMD
Unless I missed something ...