Thankfully you found yourself in this topic to help provide information about all the forum topics and sub topics.
Right now, you are in the General Discussion topic, under the Blockland forums section.
i'll take in the account that you have just got your account, but you don't know what does what.
So, I will help provide information about some topics that you want cleared up.
We will start with Blockland Forums section (Not to be confused with this entire forum)
Mind to read the rules of each topic.
Also, ALWAYS search before you make a topic about something.
1: Blockland Forums and topics
This is where everything related to Blockland comes along, to General Discussion, Suggestions, Gallery, and Help.
Blockland discussion is, in sense, everything related to Blockland, however don't post here about suggestions or builds etc etc... or they will be moved to the right topic.
Suggestions and requests are ideas you have for Blockland scripters, modelers, and mappers, or an add-on (Discussed in another category on this topic). If you can't find an add-on, save, or map, this would be considered a request, so you would post it here.
Do not think of suggestions right off the bat, few suggestions are ever made, so take the time to think about what the weapon would accomplish, or tool, or map.
Gallery is where your builds are posted, do NOT post build saves in the add-ons topic or maps topic.
Really, just post builds that you think are really cool that you have made.
Help is where you are having a technical problem on Blockland, do NOT post for help that your computer has been destroyed, that would go in the off-topic topic.
2: Files, Topics, Subtopics
Add-ons and RTB listings is where you download your add-ons to your Blockland game.
Badspot posted a tutorial on how to download add-ons on the top on the page, as a sticky.
RTB (Return to Blockland) is a Add-on for blockland that makes downloading add-ons and talking to your friends easier.
As stated in the 1st category, do NOT post saves, suggestions etc etc... in Files.
I also highly recommend RTB, as it makes everything a whole lot easier. It is a subtopic for Add-ons.
More to be added on later...
Dictionary of key terms
Bump
To put a topic back on the first page.
Sticky
A topic sticky-ed by Admins or created by an Admin.
OP
Original poster; The one who started the topic.
tl;dr
This means that the person thinks it as to long, and didnt read it.
Meaning To long; Didnt read.
Or it can be used in your topic post for people like this.
Troll
Though i dont find this very helpful, trolling is being an idiot and purposely getting people angry, however i dont mind it.
Excessive trolling will get you banned here.
Also, credit to Slugger for being a grammar national socialist fixing up my grammar mistakes.