In Okami Roleplay, we use posting tags and require them be used in posts and threads. Below is a list of posting tags that we use and what they mean.

[AW] means All Welcome. [AW] threads basically means that anyone can join them, and hop in at any time. However, thread titles must be marked

for private after 10 posts by a certain amount of people have been made in that thread.

[PR] means Private. Any thread marked with [PR] basically means that it's reserved for maybe one person or more. If you are not one of the people in a private thread, do not join them. You may only join them if given permission from the owner, but overall Private threads are only able to be posted in by the owner and the people participating in it.
[C] means Continuation. [C] threads are continuations of a certain thread, and may also be considered [AW], just only if other people are allowed.

[DNA] means Do Not Archive. These are basically roleplay threads that you want to keep in the board they were posted in. They can be All Welcome, Private, or Continuation, but you just don't want the thread(s) to be archived by staff say it goes inactive or finished.

We also allow threads to have any amount of tags in the title as wished. For example, say you have a thread that is private and a continuation, it can be named "

[C] A Private Continuation". This is just an example of what a thread title would look like if the thread was Private, and a Continuation. Also, if your thread was All Welcome, Do Not Archive, and a Continuation, the thread title would be called something like "[AW][DNA][C] A Day in the City", but the thread title is always up to you, but never ignore posting tags. Depending on the thread, posting tags will be added by staff if they are not included, but don't take advantage of this.