I won't make this too complicated. Just a few things to keep this board tidy. Note that if a topic doesn't comply with all of these, it may be because it was created (and moved from another board to this one) before this board existed, so don't worry too much about reporting older topics, though if you have any of your own, I encourage you to fix them up to comply.
1. The main board is for released packs only. Any in-development packs should go into the "In Development" subforum. A demo does not count as "released"; only the full game does. (However, it doesn't have to be finalized - if the full game is released, but you suspect an update might occur, that's okay.)
2. Don't prefix with [NeoLemmix] anymore because all packs on this board are NeoLemmix.
3. Strictly one topic per pack, per board (ie: one topic on the In Development board, and one topic for the release on the main board). Multiple packs in one topic is allowed, and encouraged (but not required) in the case of a series or otherwise strongly-related packs once they've been out for a while.
4. When a release topic in the main forum is created, please close the development topic (if any) in the In Development subforum.
5. This subforum is not for mere ideas. If you aren't seriously working on a pack (or making a serious proposal that you genuinely expect will go somewhere, in the case of eg. community packs), don't create the topic here.
6. Generally, you should not post content created by other people. The exceptions are (a) if you are converting / updating / maintaining a pack by an author who is no longer active - this is somewhat subjective but as a rough guideline I would suggest "hasn't materially participated in the forums in over a year" AND they have not explicitly stated they do not want people doing this, (b) if you are posting content made by someone who is not a member of the community (and in this case, if at all possible, link to where the author has posted it rather than reuploading), or of course (c) if you have the author's permission.
7. You may not create more than two total topics, in both the Release and In Development boards combined, in any 60 day period, without prior approval from the site staff. Note that this approval will never be given simply on the grounds of "I can create packs faster than this rule allows" - however, it is perfectly acceptable to work around this limit by using a single topic to release multiple packs.
And for people who are posting replays, just one rule to keep in mind - if you aren't using the latest stable version of NL at the time, please specify which version you are using; whether that be an older version, or an experimental / RC build.