Signatures are very important, partly to identify the user and quickly go to his/her talk page to reply, but also due to the timestamp they carry, which helps keep track of discussions. Therefore, whenever posting on a forum page or a talk page, you have to sign your posts. For ease of replying it is mandatory for your signature to have some sort of link to either your talk page or your user page (this is a minimum, of course you can have both of these and other links too).
Signatures, while mandatory in forum and talk pages, as mentioned above, should never be used in the mainspace, whether to sign your edit or any other reason. As Wikia's license says, "you do not have ownership of your edits", and therefore editors should never sign conte…Read more >