I'm just wanting to raise the point, that while lack of contact information may be concerning, in my opinion the contact information is definitely not something you should rely on to assess how untrustworthy a given relay is. A person or group with malicious intentions can fake this, easily.
Agreed.
It is also important to remember that there may be good reasons for a benevolent group of people to omit contact information.
I don't agree here. Everyone should be able to create a random new email address so others can reach them in case of problems. They do not need to put their official email address into the contactinfo field.
Note: I'm not saying ContactInfo should become mandatory and/or verified.