If you want to go and think you will enjoy the party don't let the stress of the potential crashers deter you!!
I read all the reports and the concerns prior to the party when we first read of the plans to keep the park open. Honestly though, based on my experience on 10/2 I found it better than in prior years because you didn't have to spend an hour in one land or in a restaurant but could enjoy the land/attractions of your coice. I didn't see anyone without wristbands and though the CM's make it very clear that you had to have a ticket, buy a ticket or leave.
I went with the intention giving the changes one try, enjoying this years party and if things were not under control not returning. Based on this years party if we are in WDW during a party I will likely attend again.
Depsite all the concerns this is the first post I have read reporting someone who stayed without a wristband and it was a solo FL resident who would know how to avoid detection, again just my impression
TJ