I don't expect any football club to be divulging sensitive financial information etc but fans are always going to be interested and want to know that their club is being run properly and in its best interests. So, given recent history at CCFC its hardly surprising that there may be a certain amount of cynicism, especially when you have an owner that used to attend every match but no longer does, used to do regular interviews regarding the club, but no longer does, some odd transfer activity, and a feeling of not knowing exactly what tans "end game" is.
If message board speculation irritates him as he says it does, Dalman could easily keep the fans generally informed about goings on at the club with an interview every couple of months. That's not an unreasonable thing to expect is it?