Thanks for toning it down Kevin
To your question/poll...
I have never chaired an event and... I don't think I have helped setup before

I have at least helped break things down. Anyhow, my opinion is that the two options listed in your poll are not enough. That is may not be quite that black and white. That in addition to the general CYA and insurance issues there is a bunch of "it depends" in there somewhere.
Overall, I think that if you help setup, it should be because you want to help and not to expect to get something out of such as play time. I can see how testing the course to make sure it works, etc. could be fun and might be part of the perks of helping setup. But I don't think there should be some type of general "if I help, we get to play" quid pro quo.
I also think that some of the things you enjoy doing are outside of the normal "autocross" style of driving, so that makes it hard to put it into the "testing the course" category. That gets to the heart of the insurance point. I have no idea how our policy is written, but lets talk a scenario here...
You setup the course, as part of the setup, someone runs through to check it out and ends up hitting a light pole, fence, etc. and does damage to the site. The question is asked "what was going on?" If you can make a truthful and valid argument that what you were doing was part of the typical setup for an autocross, then I suspect you may not feel the wrath of the site owner and the insurance company.
The alternate scenario is that you setup an alternate course, or you start driving outside of the marked off course, or you drive in a style that is outside of the norms for an autocross and you have the same incident, then I think we are in trouble.
The bottom line is that I think if anyone is at the point in their THSCC career that they are helping setup for events that they are acting as representatives of the club and have to hold themselves to a higher level.
I also think to a certain degree this also applies to any old timer who knows the ropes.
We have all seen a novice do something really stupid at an event. It is somewhat expected, but you hope that someone pulls them aside and says "don't do that again". But I think it also rubs people the wrong way when "Hey yall! Watch this" moments happens with people who have been around a long time and should know better. The problem we have here is that there is a difference of opinion as to what is excessive at events in addition to what is allowed during setup.
As others have mentioned, you have great car control skills. Please take that as the compliment it is meant to be. However, just because you find it fun and your ability allows you to push the envelope higher (or in unexpected ways) than others can, that does not give you the right to do so.
I hope this helps somehow.

_________________
Richard Casto
1972 Porsche 914
2013 Honda Fit Sport
2015 Honda Fit EX
http://motorsport.zyyz.comMoney can't buy happiness, but somehow it's more comfortable to cry in a Porsche than a Kia.