It's a completely volunteer job. Why do it if it's so horrible? Especially for free, for a corporation like Reddit? Either it's not as horrible as it is being often portrayed or the mods get something out of it too.
The day to day chore can still be a horrible experience even though you get something out of it. Whether it's a sense of charity (best case scenario) or a power trip (much more common), it doesn't mean the job is pleasant, but it may make the mission worthwhile for someone.
