Do you mean about calling a logic probe and oscilloscope one? if so its not something i can see someone laughing about... 
I put the title "...eBay listings."
I am laughing at the eBay listing practices. The seller said "You are looking at a used oscilloscope probe. The probe is
in working condition." To me at best he is misrepresenting the item. But then the sell has 100% positive feedback with these kind of listings.
If someone posted here asking he can use a pulser as a oscilloscope probe, definitely I would say NO. No laugh.
Hope this help you see where I am coming from.
For those of you who is not familiar with this ancient logic pulser, I attached a page from the manual.