Actually I (and anyone worth their salt as a network admin) will slap the sh*t out of someone for giving their computer a name on the network like "Shaggy". Mainly because, exactly the opposite of what you said, it is HARDER to know which computer you are administrating when you see "Scooby", "Velma", "Daphne", etc. instead of "Gary's Dell", "Matt's Macbook", etc. After all, which one is Shaggy? Which is Velma? In any serious workplace, names need to clearly identify which computer they are, so you can actually take time fixing problems and doing work rather than looking up who's computer "Scrappy Doo" is...
Cute names like that are acceptable ONLY on a personal network. Maybe in a workplace small enough or without central servers or administrators. Maybe.
Sorry to be a buzz kill and all...
Personally, the only time I call my computer by a name is when I am cursing it, so I guess you could say that my Macbook's name is "you little plastic piece of sh*t"