I don't believe the Linux kernel community would perceive the information in that way. Everyone is vulnerable to this kind of bad faith submission; gregkh and others seem to understand that.
Individual kernel maintainers should probably be able to contact the IRB to inquire whether they were personally enrolled in the study. The IRB may reply to that, or they might ask the study to notify all enrolled participants individually. Those individuals could then on their own publicly disclose the fact that they were enrolled. But I don't see why the general public has any need to know anything and it's unreasonable to make the demand.