signature (from Latin: signare, "to
sign" is a handwritten (and often
stylized) depiction of someone's
name, nickname, or even a simple
"X" or other mark that a person
writes on documents as a proof of
identity and intent. But it seems that
on nairaland signature means
something else. Most persons (I
don't knw if its delibrate or out of
ignorance) mistake it for "favourite
quote". This isn't facebook abeg. I'd
rather you don't write anything
there than ignorantly write "wise
saying" (in most cases). Wise up.

na trouble u dey find ooo

Online usage
Main article: signature block
In e-mail and newsgroup usage, another type
of signature exists which is independent of
one's language. Users can set one or more
lines of custom text known as a signature
block to be automatically appended to their
messages. This text usually includes a name,
contact information, and sometimes
quotations and ASCII art. A shortened form of
a signature block, only including one's name,
often with some distinguishing prefix, can be
used to simply indicate the end of a post or
response. Some web sites also allow graphics
to be used. Note, however, that this type of
signature is not related to electronic
signatures or digital signatures, which are
more technical in nature and not directly
understandable by humans.

www.wikipedia.org/wiki/Signature

SO OP you get it now?

Signature block or signature?

It still means the same thing!