I changed it, and I clicked on “show signature,” but it doesn’t appear. It shows up when I preview, but it doesn’t appear in the thread.
Oh, I get it! You have to click “show signature” again after you preview.
Yeah, the “Show Signature” field doesn’t retain its information when you preview. This is a known bug.
Testing testing
BTW, if the sig is more than twice as long as the post, don’t bother putting it in. Especially not when the one immediately previous also has it. 
Eep!
That sig line is way too long. Make a shorter one.
Welfy – Go here to find out why Rysdad has such a long sig. I for one wholeheartedly approve of it.