Looks easier than it actually is. Here's how a mod routine looks like:
check modqueue (that's the place where all reports come). Some are fake because one user has some beef with another, some trolls, some spam, some user insulting each-other.
you work through the queue, by the time you are done users who were banned are already complaining on modmail, you take your time to read all complaints and try to shrug the threats and the attempted doxing. you get a thank you for each 100 threats.
rinse and repeat. whereas it might look glamorous from the outside in practice is boring, repetitive and tedious. in large subs you also have to coordinate with other mods to make sure there is some consistency in modding actions.
finding new mods is easy, having them stick around, I'd say not so much.