It could be related to the volunteer/non-profit mesh network ISP nycmesh.net, another ISP NAT'ing connections. It might have an unusual apparent topology, wit

It could be related to the volunteer/non-profit mesh network ISP nycmesh.net, another ISP NAT'ing connections. It might have an unusual apparent topology, with mostly to entirely wireless backbone links based on line-of-sight. Although I think users you talked to would identify this possibility, e.g. your moderator.