As a reminder, at the top of each page on the forum boards is an announcement message that states:
"Attention All Members, New FAQ Section". We instituted this so that all new members could search for answers to their questions. The answer to the distance question is supplied under the pilots FAQ which includes a link for instructions on how to make any changes to that setting.
Early on, we did not have the auto email notification feature for pilots to use, or not use. The majority of all the early pilots settings are still at 0. As Rick indicated, pilots in "high request" areas might be overwhelmed with auto emails so they either set this to 0 or lower the distance willing to fly one direction.
It's also important to remember that everyone who is listed as an advisor with PNP is a volunteer. They donate their time to keep this board running more smoothly and may feel the need to give a short version answer until they can research this further. If anyone ever feels as though their question was not answered in depth, please feel free to utilize the contact forum admin option and ask. We all do what we can to help each other!
Thank you all for your dedication.