Slip and Turn,
I think what you will find is that whilst there is no penalty in asking a question, there is certainly going to be a backlash when you make accusations of unprofessionalism with extremely limited and subjective evidence.
To assume that pilots are tired and just want to get home 5 minutes earlier by compromising safety and performing intersection takeoffs contrary to policy is absurd.
To assume professional 738 drivers are 'confused on the taxyways' simply due to taking a different non-direct route to get to the TO runway is equally absurd. Were NOTAMs in effect? Was there garden maintenance vehicles near Taxiway F? How can you tell from one side of the back of the aircraft?
Credit where credit is due mate, these pilots are highly (and completely) trained professionals operating under strict safety regulations which are first priority ALWAYS. To assume that an intersection takeoff and indirect taxi equates to a tired and confused pilot is naive and offensive.
Please feel free to ask the question you asked, but be respectful of the answer, or don't assume incompetence/unprofessionalism straight away. That's offensive.
End rant.
Matt