Cooky, I'm very confused! How is your username valuation so high??? I would be happy with a 10 cent valuation - probably not worth .0001 in reality for myself! Why buy stocks - just sell rights to your usernames. First time I've ever heard of this scheme. Masterful if you can pull it off! A real genius for sure. Good luck! Bill Gates should have thought of this long ago & we all know how bright he is - far ahead of his time.
Maybe you can set up a new company & call it "Username Valuation Promotion Ltd"
You would make a small fortune, but of course if you can get $10/ hare from Dave Quintal, your worries about everything are over. Life will be just a bowl of cherries!