All forum posts are formatted using DText.
The quick search bar will search through the body only. For more advanced searching, use the forum post search page, which also allows searching by topic title, author name, and topic category.
Currently, the following categories exist for forum topics:
General - The default category, for anything that does not fit the other categories.
Tags - For discussing new tags, changing tags, tag aliases and implications, etc.
Bugs & Features - For discussing things related to the Danbooru software.