"Good fan"?
I don't think there is such a thing. Unless I missed the "how to be a fan handbook"!
There are casual fans, fair weather fans, whiney fans, passionate fans and die hard fans. And combinations of such.
There are fans who, despite lacking the necessary information, make judgements on transactions made or passed on.
There are fans who think every move is a good move and others who think every move is a questional move.
There are fans who are affected by one bad play early and say, " we're gonna lose".
There are fans who are affected by one bad game and believe the season is shot to hell.
Or one release or trade. Or multiple. Truth is none of us know for sure, but we're all gonna watch to see. Then some will undoubtedly revise their position or what their position was.
"I never thought we were done
when we lost to Tennessee, SF and Green Bay!!!"
"I never said, 'we weren't gonna catch Arizona for the division title'!"
"I never said we were toast when we lost the season finale to SF!"
"I didn't leave the house and throw my Stafford jersey in the trash when Tampa tied the game at 27!!"
You get the idea.