If you quote naigewron's post you will see that he links to a blank gif that he prepared earlier.
That's an awful lot of PITA to get around a pointless rule!
I designed web sites in the 90s and early 00s, when blank gifs was the industry standard spacer. I always have one on hand
I remember years ago back when i had about 2% of the entire forums posts. Used to live on this site. That said, i think the 20 character rules is fine, just leave it.
Is there really a big problem somewhere? This is a drummerforum, not a guitar or bass forum...