...Are you suggesting that they have been distrust by a forum member, at least a reputable one? I don't think that is the case here because I have not see where they are distrusted.
or don't you think they should officially have their own campaign to gain more trust and reputation here?
I doubt if running a signature campaign is the right way for them to go now considering the nature of their business that only requires one not to have access to their wallet and trust me that, in recent times, people are already learning how to safely keep and store their wallet access(pass phrase) and making the issue of wallet inaccessibility reduce significantly(my thoughts) and running a signature campaign wouldn’t do them much good now considering the cost and the fact that, every business wants to make a profit and not just invest.
I would suggest a review campaign for them so they can get people check their activities and give feedback on possible ways for them to improve.
You are very correct here buddy, running a signature campaign here wouldn't gain them trust as expected, like doing a review campaign, because by doing so, most of the community members will be paying much attention to the review of the community members on how competent they are in retrieving lost wallet, even though some people will still be skeptical about it till two or more reputable members of the forum came out and speak up of their experience when using their services, till that is done, it will be difficult to gain the full trust of the community.