You aren't a "fanboy" just because you like most or all of a particular artist's output. If a particular artist resonates with you, chances are that, unless they radically change their sound, what they do in the future will likely resonate with you as well. I have a number of artists I feel that way about. In terms of just blindly lapping up an artist's output, I think the "fanboy" label only applies when it is clear that a person refuses to be objective, which does not apply here. For instance, there is a certain frequent flyer in the Queensryche thread who tries to argue that Geoff Tate sounds fantastic, has not lost a significant part of his ability, and continues to sing correctly. Anyone who chooses to like Tate and think he sounds fine, that's great. Enjoy what you enjoy. But at least the second two of those three points are objectively, demonstrably false, and I would argue that the first is pretty darned close. To argue against those kinds of objective facts or to brush valid criticism aside is blind "fanboyism." But, again, that isn't the case here.