Are you sure about this ? Do you have some information that you can point me to that says this ? Thank you
Ok, for the effect of enthusiasm:
That enthusiasm and Home Court Advantage helps your defense and your rebounds I gathered from the 'coach parrot'-tool. There is a thread in BB Global containing the links and all. It seems like HCA and enthusiasm work the same way, I think this is the reason why National Team Games and All-Star Games tend to be high-scoring games (as they are played on neutral ground and nobody receives a defensive boost).
The effect of attitude is more difficult:
I was speaking mainly from experience here. I remember a thread in the help forum where people claimed that CT or TiE affect your FG percentage. I couldn't find it as the help forum is one big graveyard. What I found however was a post from GM-kozlodoev
(36151.27) and he stated in his second comment that 'more things will go in your favor' (when playing with a higher attitude). So it would not only affect the field goal percentage, but also blocks, steals and so on.
Plus I realise that many people are complaining about their lost games in this very thread when they played with a lower attitude than their opponents. In my opinion this stems from the 'invisibility' of attitude in the team ratings.
That's all I can provide as a proof of what I said. It's only my opinion and so I wrote it were just my two cents ;)
Cheers, Exos