No one knows how many moderators are there in Roblox. It is an official, not declared anywhere, maybe more than thousands of moderators working in Roblox.
Moderators are team members who are working in Roblox. Moderators works are very difficult because they need to give more than 9 out of 10. They have full responsibilities to review reports and moderated contents.
Work of Roblox moderators
Roblox moderators will block the user’s account who will break the community ruler and Term of use rules. They will respond to delete or ban the user account who will break rules.