wondering how people get it to show their total gold in/ out in their sigs

They just copy and paste from the top of their gold log

What is that?

Click on your gold, should say gold in/out at the top under the month.
Select the month then copy and paste.

Thanks for the reply guys, that's definitely lame and disappointing haha

You can write that data to a table and use a dynamic sig to write the table text onto the sig. The ladder slasher forum has guides on how to accomplish this