The post i was responding to dismissed success as a by product, in this case - trophies, since we're talking about United.
Which led me to question his decision to remain a fan. Reinforcements ( both positive and negative) are what being a fan is all about - winning and reaching your targets, losing and getting eliminated,relegated and regressing as a team etc.
If entertainment is what you're after, then playing the best football in the country,despite losing all your games should sustain you as a fan, heck you should even be ecstatic.
A single performance might draw you to a team, but it's not what keeps you, you have to build on that, you start caring about the team's goals and aspirations, the quality of the team etc.
But I guess it's all subjective at the end of the day. Telling another individual how to support a team goes against my principles, so I'll stop now.