Hello,
thanks for your message. Indeed this Participant already received a message from me.
I request you to not to remove him from the campaign.If you do so then you will be feeding the trolls.The trust system is not made to diddle this way basing on your likes or dislikes while not considering anything said by other people.
Please ask them proof's for what they claim and i (and most of the other supporters) would not support that guy if it is proven that he is a paid shill.
Thanks.