I’ve experienced nothingness. It’s not unpleasant at all because it is nothingness. It is no more unpleasant than the nothingness before I was conceived.
The question is whether or not God fries the individual sinner's “I AM” center out of existence. The Bible does not read that way. There also remains no crime and punishment factor since many folks love the notion of living a riotous life than pfffft...nothing. So what if God wakes them up one more time...tells them they are condemned then Pffft...dissolution of soul and spirit forever, a lot of people wouldn't care. But many folks have been saved by fiery preaching when being saved by love preaching wasn't working for them. The thought of an eternity spent in the Lake of Fire has been a factor in turning many to God. There is a final judgment and most people deep down know it to be true!