Ironically there are two current threads regarding the Illinois HP, both of which appear on the 'front' page as I view this site. One even includes a note from the landowners and includes time and date information. Instead you found an old thread that last gasped air in 2003 and is woefully out of date? How could you have missed the current threads? Were you trying to?
I can think of lots of good reasons to not go to Illinois, but being barred from the HP is not one of them. Find another hobby!