The thing is what is the first you do should do when unpacking the new device when you buy something new ?, read the manual understand how it works.
How to do all the things people ask, that are contained in the manual for that exact purpose of using the said device, how to access it in the case of say a router, it`s Ip address, or web address to log in to the router. Default factory set password, and user name. Like you I am simply amazed how people put so much little thought into that one simple thing to do 13 monkey, absolutely baffled of the logic of some people.
What is retarded is simply not reading it. Or pure laziness.