Check out @fubar-bdhr's post about this.
All steemit.com links on ANY subreddit are being automatically hidden. Moderators must manually approve the link before it will be shown. I have tested it for myself and the explanation in the post is correct.
Right now however you can still use busy.org links. If you're sharing anything on Reddit, simply replace the 'steemit.com' part of the url with 'busy.org' and it will work fine.