From the one time I tried requesting a sub there, they don't just let someone have a sub if they ask and it'd be banned otherwise, they probably won't give it to you if you don't have mod experience for example (the reason I didn't get the niche sub I was trying to revive, which is reasonable enough), or if they feel that what experience you do have isn't enough that you'd likely be able to handle the particular sub. TIHI is a big sub, so they'd not just be looking for any random volunteer, it'd have to be someone experienced with moderating sizable subs, probably. And those people are, well, exactly the kind of people angry with reddit right now.