Hell is not yet created, hell is the lake of fire and for those people claiming to have gone to hell or hades they must not read the Bible much. Here's what Jesus said about the place of torment. Luke 16:24-26 "Then he cried and said, ‘Father Abraham, have mercy on me, and send Lazarus that he may dip the tip of his finger in water and cool my tongue; for I am tormented in this flame.’ But Abraham said, ‘Son, remember that in your lifetime you received your good things, and likewise Lazarus evil things; but now he is comforted and you are tormented. And besides all this, between us and you there is a great gulf fixed, so that those who want to pass from here to you cannot, nor can those from there pass to us."
Abraham is telling the rich man that, he can't come to them and they can't go to him. So how are these people going to hell while they're died for 23 minutes. Once they're there there's no coming back. Here's another thing, they see people being tortured by demons or devils, when it was created to punish the devil and his angels. Matthew 25:41b "Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels:"
They also say that they see people or things, when Jesus say it's a place of darkness. Matthew 8:12 "But the sons of the kingdom will be cast out into outer darkness. There will be weeping and gnashing of teeth." Also 22:13 & 25:30, this is a place of great torture, which results in weeping and grinding of teeth or utter agony. There is nothing to see in hell, they would also only have a sense of falling. Here's another description of the place of torment Revelation 9:1-2 "Then the fifth angel sounded: And I saw a star fallen from heaven to the earth. To him was given the key to the bottomless pit. And he opened the bottomless pit, and smoke arose out of the pit like the smoke of a great furnace. So the sun and the air were darkened because of the smoke of the pit." Also verses 9:11, 11:7, 17:8, 20:1, 3.
So these people report that they where in a place of torment, with extreme darkness, flames of fire, where you you feel like you are falling forever, like that feeling you have when you wake up from a dream where you were falling but never get the bottom, while crying vehemently and grinding your teeth because of the pain. That's what the Bible says about hell or the place of torture, yet these people report something else. They need to read where it says that liars are cast into the lake of fire. Revelation 21:8 "But the cowardly, unbelieving, abominable, murderers, sexually immoral, sorcerers, idolaters, and all liars shall have their part in the lake which burns with fire and brimstone, which is the second death."
Here's another thing, if they were in hades, they couldn't get out according to Jesus and Abraham. Once there, they would go from Hades to the lake of fire Revelation 20:14 "Than Death and Hades were cast into the lake of fire. This is the second death." It is impossible to go, see, be, experience, Hades or Hell.