As with all things we have our own definitions. And, I would think that no one would consider themselves a fanboy in the way no one would consider themselves a bad driver.
Here I believe there are 2 forms of fanboys. First is the stalker-type who believe that there is some relationship between him and the talent that does not actually exist. This kind of person is to be avoided at all costs and it frightens/disappoints me that a person like Sportswami can terrorize some girls and others seems more than willing to fall into the same trap.
The second is more like "fag" calling where the person makes so hard an attempt to publically play up to the talent it makes you sick. This can be very hard to differentiate because in some cases it depends how it is done and/or who is doing it. Our own behavior tends not to make us sick, but another's behavior might.
For example, Ben who lives in Ceara's bunny cage and whose sig is a campaign for Gen to be in American Gokkun, is CLEARLY a fanboy.
But, CERTAINLY my posting fuzzy bunnies, discussing the well-being of Noah with Mia or posting slight teases of Gen are NOT fanboy behaviors!
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Amo i Gemelli!!