User blog comment:SRankDude/New Signature!/@comment-30171008-20170302192708/@comment-26335978-20170302224826

Click your profile pic in the top right of the screen (next to your notifications), and then click "My preferences". From there you should see a box with "Custom signature:" on it's left. Put whatever you want your signature to say, and coding (if you want) to change the color, font and some other things.

Example:
 * Whatever you want your sig to say

Which would give you: Whatever you want your sig to say There's a lot more you can do, but I'm not too experienced with signatures, so you could contact Rith or Darth for more help.