. Currently there are only 3 members for the Buffalo chapter, and there is no host. Meetup is a free service that organizes local gatherings about anything, anywhere.
A host is a Meetup attendee just like you. The only difference is that they've agreed to help people find each other at the Meetup. They might have printed out a sign and put it on a tabletop. Perhaps they came bearing nametags and a magic marker. Hopefully they've let the venue's management know that you're all coming there to Meetup.