The forum signature is a block of information automatically appended at the bottom of each forum post. The kind of information allowed in this block can be:
None. Some forums have this feature disabled.Plain text. Most users fill their signature with some kind of witticism or aphorism, or even small drawing made by letters. Links. Some forums use links with the "nofollow" attribute, and other forums use links without it. Usually the signature links are used to link to sites owned or favored by the post author, although only those forums without the "nofollow" attribute provide the best SEO Benefits.