Hey I want like to enter the contest! I'm broke lol
If you want to get technical the first original main owner of Trade was made by a regular user shortly before 42 confiscated it. He made it official and gave the chat to Christina to manage. Again if you still count it, 42 & Christina were the first. Don't know why everyone's saying 'Brendon', Brandon was only ever owner at the time after the fact, never the first. Don't think he ever made main owner.
The second answer is 15, because I asked. Hehe.