Hey have you tried this with anybody yet??? if yes then please ask your investor to post a feedback on you here so that might help in favor. Else it sound like a scam, I know you won't take the money but its somehow like the same you are trading with other's money if they have profit you will get your cut if they suffer loss you will still be safe, So isn't it either good to trade our self and bear the whole profit or loss 
i have my reasons for them not posting which have been discussed with them. i have a few trusted users who can write a review. if need be i will request them to write one. i totally understand where your coming from, but note one thing, as i can stop my users from posting a good review about me, i cannot stop them writing something bad, so far i have not received no bad comments. just curious posts.
i am happy with the interest so far, if interest drops i will get that post to verify my services, as i am not looking to take on the whole community, legitimizing my services would cause a tsunami of interest, something i will not be able to keep up with, so it is limited.
stick around and see how the thread evovles