2 btc mean $13,000. what is so special in this website that you are asking that high price for it? I checked the website. it's a simple machine forum with very few members. most of the sections are empty with zero posts.
i don't think this price is reasonable.
The domain probably has a value to people within the market of altcoins. Especially, if they want to create something Bitcointalk-esque. I doubt they will as it takes some real dedication, and organization to pull it off, but that doesn't stop them trying, and valuing a domain like this.
It might not be worth anything to you or me, but the price is probably justified for those looking to operate a altcoin forum. There's definitely a gap in the market.