It just so happens that, due to my obsessive-compulsive data-hoarding tendencies,

I can tell you the exact post counts of each of the levels:
Spike (Newbie) – 0–39
Petrie (Junior) – 40–199
Ducky (Senior) – 200–499
Cera (Queen) – 500–999
Littlefoot (King) – 1,000–4,999
The Gang (Ultimate LBT Fan) – 5,000–9,999
Mo (LBT-aholic) – 10,000–infinity
Also, just in case you had any questions on where to start or find topics, I thought I'd share a little guide of sorts to the sections and sub-forums of the GOF (modified from two other posts I made in the past when offering similar help to other new members).
AnnouncementsAnnouncements: Board rules and important news from the GOF staff. You can’t start posts here if you’re not an admin or mod, but you can view the board rules, signature guidelines, member levels, etc.
The Welcome Center: Seeing as you’ve made a post introducing yourself post here, it’s obvious that you already know what this section is for.
The Land Before TimeThis subforum is pretty self-explanatory; all of the sections relate directly to the LBT series and fan work based on it.
1988 Theatrical Release: This is for topics relating specifically to the original movie.
General Land Before Time: Contains topics on the sequels, discussion threads on the characters, and topics on the LBT universe in general.
Land Before Time TV Series (2007): Topics relating specifically to the television series, including episode discussions.
Fanart and Fanfiction: This is where you can view LBT stories, artwork, poems, etc. made by GOF members (reviews encouraged), and share your own.
LBT Projects: This is for special LBT fan works such as music videos, games, and singing projects, many of which are collaborative efforts by multiple members.
Role PlayThis section is for role-playing games.
Land Before Time RPG: This is for RPs strictly based on LBT (no outside elements such as humans, or characters from other series).
Role Play Discussion: Contains discussion threads for RPs. To join a RP, you usually request permission to enter in the respective discussion thread of whichever RP you are interested in.
Random Role Play: For RPs not relating to LBT, and LBT RPs with non-LBT elements (such as GOF members meeting the LBT characters).
Beyond the Mysterious BeyondTopics that do not involve LBT (unless you count LBT-related games in The Party Room) go here.
The Arts: Discuss movies, TV, literature, and music, and share non-LBT-related artwork and writing.
Hobbies and Recreation: For topics on video games, computers, sports, travel, and other pastimes.
The Party Room: The place for games, jokes, trivia, and the “Ask Me” forum, where you can get to know other other members by asking them questions, and start a thread of your own where other members can ask questions of you.
Caption This!: For posting humorous captions to photos, screenshots, etc.
The Fridge: This is for general discussions that don't fit into any other section. Also includes “star day” threads for giving birthday wishes to other members on the appropriate dates, and the home of the GOF Member Awards.
After Midnight: You won't be able to view this forum until you reach a certain post count. This is for mature, serious, potentially controversial, and somewhat more private discussions. It also contains “Show us…”, a section where members can post photos on various subjects, and “Lands Unknown”, for posting announcements of prolonged and possibly permanent absences from the forum.
GOF GovernmentThe Rock Circle: This is for sharing, discussing, and voting on proposed changes to the GOF.