If you can provide a signed message from a post with at least 3 months old, also if the negative trust is from a people who have a red trust rating with 'Warning: Trade with extreme caution!' tag, then the account could worth 0.2 BTC. This is the market price, so you may make this as the ask price.
0.2 BTC is ask price
If you can provide a signed message from an address at least 3 months old, IMO more ppl will be willing to buy your account!
How do I do that? I'd like to but I simply don't know how it works. Thanks for the warning guys