I think that before you endorse a project in the forum, you should have thoroughly reviewed and checked their website for possible accusations. In addition, you should have also indicated that you were posting this for someone else so you could at least have a reason for it. But, it is your responsibility as the thread manager to check all the errors in the project. Since you were the one who advertised it, you bear all the consequence surrounding the project that you posted here in the forum.

At most, I do think that the negative trusts may be changed to a neutral trust but the flag cannot be deleted. Still, I think you should be held accountable for this wrongdoing.