Not sure who would use your service when your expecting to take bitcoin to buy yodark.. what about those with yodark coins they cant spend those coins on the service? They will send price lower..
Ok lets take an extreme example let say I'm building the next linked in social network (it's a fictive example but be sure I'll announce it when it's ready). And now lets say sidhujag you work on it for a bounty you give me report every week and you work it for 500 hours. We premine 5000 coins about 30% of the reserve. Then as I estimated the total work will be 500 hours so you get 10 coins per hour and working for 500 hours you get 5000 coins
Then after a year we launching the yodarkLinked in
Let's say there are 50'000 members registered to yodarkLinked in and 500 premium users willing to pay 10 USD per month.
The service price will always be 10 USD or 0.02 BTC or X yodarkCoin where X is the market value of yodarkCoin.
Then the 500 users will need to buy from you for 10 USD of yodarkCoin. Let say we'll run it for a month. Then you will sell each of your yodarkcoin at a different price if there is 500 or 100'000 users wanting it. Of course the more user there are the higest value will have for your coins.
Looks interesting I wonder if its going to work