Why laugh at someone simply because they didn't know something?
1. Some IRC networks operate in unique ways, including how they mask IP addresses or even if they bother to at all.
2. Some people are new to IRC and generally don't know alot about it yet.
3. Some people have some experience with computers and IRC but are still brave enough to ask a question - people who laugh at others who want to gain some knowledge are more ignorant than those asking the questions.
Next time you step in some freshly laid, steaming dog poop and some git laughs at you, think back to this little bit of fun you are having.