That's because he pretended to delete the previous thread with the reasoning that it contained sig spam and because you're not wearing one, he can't delete yours as that might raise more questions but he knows that he's free to not answer anything.

But I suppose if your reply stays there, that's enough to let others know that there is no way to verify the picks and that might prevent some of the sane users from getting scammed, other users don't care and will play anywhere, the Investor-based section is filled with such users who continue to invest in ponzi schemes, knowing that they will lose their money sooner or later.