I assume that it is not a paid position, but you are expecting someone on a volunteer basis.
Have you done any analysis at all, how much is needed for another cryptocurrency talk forum? What is the goal you want to achieve with it?

Just a few days ago, you were selling this domain, what are the guarantees that you won't sell it in a few months, so someone who volunteered with you just wasted his time.
Talkethereum.org domain name for sale