While mostly aimed at new authors, this covers all the ++Links in the site header, that's pretty much everything, but comments, and messages, which is dealt with first, as they are so basic they need little explanation.

<h1>Comments, and Messages</h1>
After any individual post on the site, there is a comments, and messages section
<h4>Original Post</h2>
If you click on the links below an original post, you reply to that original post/author
The link “Add new comment” – Replies to the original post, publicly, below the post, and previous comments, and all users will see it.
The link “Send author a message” – Replies to the original post, privately, and only the author will see it.
<h2>Specific Comments</h2>
If you click on the links below a specific comment, you reply to that specific comment/author
The link “reply” – Replies to that specific comment, publicly, indented below that comment, and all users will see it.
The link “Send author a message” – Replies to that specific comment, privately, and only that comments author will see it.

<h1>Title, and Body</h1>
Depending on the type of post, exactly what these elements are called, can vary
<ul>
  <li>Title = Subject</li>
  <li>Body = Comment = Message</li>
</ul>
Regardless of the name used these two elements are common to all the ways to post on BigCloset TopShelf.
Title, and Body, are the names this guide uses, because it's mainly aimed at new story authors.
Most of the basics apply to user posts, where the variant names are used.
<h2>Title</h2>
Simply the title of the post, it depends on what you're posting as to what this is, for individual posts, it doesn't really matter.
Where posts get organised into groups, and subgroups, is where you need to plan things, but I'll deal with that in the ++Organizer section.
<h2>Body</h2>
This is your main text box for the content you post.
It is NOT a WYSIWYG (What You See Is What You Get) editor, but neither is it an HTML code editor, it's some sort of hybrid between those ideals, with it's own coding rules, not an ideal situation, and though a competent HTML coder can work with it it can appear intimidating for the ordinary user.

Do NOT be intimidated by it, for a simple story, you dont need to worry about HTML if you don't want to

Use the Preview Button, to see what your post will look like.

If you're satisfied, and ready to post, then save posts to the site, even then you can edit any existing post, but better to get things right before posting.

Using the Buttons for formatting
Do not be scared to experiment, I'm completely self taught, using trial, and error methods.
Preview is your friend, and if you need to take a break, copy & paste is your best friend, a long complex post such as this doesn't happen in one session, always have a text copy, I highly recommend you invest in getting Notepad++, I know it costs time, but it doesn't cost money.
I don't trust Windows Notepad to faithfully reproduce the text box contents, but I do trust Notepad++
Note: only copy the Text box contents, not the Preview, or any formatting will be lost.
I use the Title, as the name of the plain text file, so it doesn't need to be added to the text Body contents.