That's what I as picturing.
Anything really to make your reply stand out.
Kind of like eBay and Flippa and other sites do for their listings but for comments instead.
This could prove useful for branding and could be part of a true commenting campaign to build your name and business awareness.
Do I think it should be patented? No... but I do like the concept.
I wonder if legit / large news sites would adopt this?
You never know with their shrinking print-media side... they just might!