Because it's not

The left has their own politics stream, kinda like bluesky, because they have trouble getting along with those who disagree with them. I don't know why so many mods are lefties, possibly having more time to devote since they don't work like conservatives do.
That statement will get me banned from commenting for a couple of days. That's how it works.

You would have to be somewhere to the left of Saturn to see rightward bias from these mods.

Nope, just fair moderators

It's not about statistics it's about media bias