Well, Christians tend to disagree on a lot of events related to Jesus's second coming and the end of the world. The person who made the website seems to believe that the rapture happens first, then 7 years of chaos in which people still have the opportunity to be saved, then Jesus comes back.
Personally, I don't worry much about exactly what will happen at the end of the world; only that repentance and faith in Jesus Christ are how I can make sure that Jesus's Second Coming is a glorious day and not a horrific day for me. I also believe very strongly that no one will be sent to hell forever unless they choose to snuff out whatever goodness is left in them. As long as you have some good in you, it's not too late to be saved! Even though a lot of people will have to suffer, particularly those who delay their repentance for a long time, everyone who has good in them and doesn't snuff it out, will someday accept the gospel, repent, and be given a glorious eternity.
Did you ever actually visit the website he's linking to? It's totally batcrap crazy.
Best I can figure from all the weirdness is, someone believes in a literal Rapture (all believers in Jesus Christ will someday be suddenly taken from the earth and chaos will ensue for those left behind) and wants to be able to talk to those who are left behind and guide them through the chaos, but faced the problem of "if I really believe in Jesus, then I'll vanish in the Rapture, so I won't be there to guide anyone who's left." So their solution was to create a website for those who are left behind, and they're trying to share it all over the internet and post QR code stickers all over the world so that those who get left behind can easily find the website.
The insane thing is, there's absolutely nothing on the site addressed to people who see it *before* the Rapture; everything speaks as if it's already happened. There's nothing about a campaign to "spread the word" before the Rapture so that those left behind can be saved; nothing except for a link to print out the QR code. It even says at one point "If you're reading this, it means the rapture has already happened." Massive blunder. It ends up looking like the ravings of a madman who is deluded into believing that millions of people have already vanished from the world and that there has been mass panic and chaos ever since.
