I have already responded with how I think he could make this right;

1. Instituting new vetting measures for ICOs to ensure this never happens again, and maintaining a better standard of transparency in his ANN/Bounties, adequately highlighting that he does not endorse the product, and is merely acting as a representative.
2. Reimbursing those that were directly afflicted by his mistake, this might not happen instantly of course, but as long as he shows he is committed to do so.
3. Listen to community feedback regarding sketchy behavior, and respond to criticism if he possesses knowledge that would shed light on the matter.

As for calling out ICOs with shady tactics (most of them), few of them would ever announce they are engaged in these activities, so it is not possible to call them out.