I'm not talking about casual fans. I'm talking about one person who swoops in because of the coach, and will be even faster to swoop out, who doesn't really care at all about the team other than the coach.
That's not for you to say. Tubby may be what brought him here, but who are you to judge his fandom? He probably knows more about the current Gopher team as a whole (not just Tubby) then a lot of 'casual' Gopher fans out there.
Growing up I was a huge fan of John Elway. Following the Broncos was really just a sid-effect of following Elway. But over the years that changed, and I became a true die-hard Broncos fan. I am to this day even though Elway retired 9 years ago. Be thankful for any and all Gopher fans, instead of flaming those you think are not worthy.