The times that I have volunteered at soup kitchens, usually the majority of the people coming for meals were men.
The majority of advertisements that I have also seen for roommates are for women to stay with other women. One time I saw a man posting a sign advertising for a female roommate, and I asked him why he was looking for a female roommate. He said that he just preferred a female roommate.
With the goal of this site to help promote role models for healthy male friendships, it would be great for that to impact homelessness.