As Angelo said, maybe Brandon reacted like that because you suggested yourself as a Volunteer.
However, it looks like you only suggested some of them(including me) because they are chat managers. And, i don't think that's enough to be a volunteer, because it's not simple. Being a chat manager doesn't mean that we are ready to be Volunteers. And i say this because you did the same thing previously, but i didn't say anything. Anyway, maybe you did it with good intentions and i want to thank you for that.
However, i think there are other people who could do a nice job as Volunteers.