I've personally seen honesty and generosity of Icopress and I believe he's one of the most honest managers/members of the forum. I've been in his managed signature campaigns for so many weeks and I can surely say that he sent the payment of the each week on time. That's enough to notice the trustworthiness and honesty of someone.
Although, there have been no actual trades with The Sceptical Chymist or anything related to payments or etc but he's also a very generous and helpful member of the forum. And, similarly I used to be part of signature campaigns managed by Royce and I can say he's also a trustworthy manager/member of the forum.
Other than the mentioned members, I do trust some other members of the forum from core of my heart but I haven't done any trades with them. JJG, and Philipma1957 are the OG's that I trust and I've learnt some valuable things by reading their posts.