Newbie - Need help with r/mildlyinteresting posting

Hi all, I'm brand new to Reddit and still figuring things out. I'm really hoping to post something on r/mildlyinteresting, but I'm running into a problem. I can't seem to find their rules anywhere, specifically the karma and account age requirements for posting. I've tried searching the subreddit, looking at the sidebar, and even messaging the moderators. They just told me to keep building my karma, but they didn't tell me how much I need! It's hard to work towards a goal when you don't know what it is. Any help from you experienced Redditors would be greatly appreciated!