And there is absolutely no requirement for a moderator to be unbiased.
In fact, the word bias isn't even in the dictionary definition of moderator:
moderator
noun
mod·er·a·tor ˈmä-də-ˌrā-tər
pluralmoderators
Synonyms of moderator
1
: one who presides over an assembly, meeting, or discussion: such as
a
: the chairman of a discussion group
b
: the nonpartisan presiding officer of a town meeting
c
: the presiding officer of a Presbyterian governing body
2
: one who arbitrates : MEDIATOR
3
: a substance (such as graphite) used for slowing neutrons in a nuclear reactor
Meet Merriam Webster, one of my higher-up friends:
https://www.merriam-webster.com/dictionary/moderator
and before you jump down my throat about the word "nonpartisan" that refers to a POLITICAL meeting, of which this is not
I am very much biased against board assholes