How do you become a moderator? Are there like requirements?
Yes there are requirements. For example being mature and nice. You need to know the rules, report stuff to show how well you know them. Next you need to know what type of punishment to put for each infraction of the rules. Moderating is heavily judgement based, so you need to know how to make quick judgements based on post/comment context. You also have to not break any rules. Another last thing is you have to be in the community for a while. There are some more things that I didn't list here but so far that is the majority.
You get chosen if they need new mods and you are active on the repl.it discord and you report lots of things and you are mature and you are nice and you don't abuse your powers and so on, they seem adamant to add new mods