People do it, but you may need to thin it with a little alcohol, like vodka or PGA, or distilled water. If the juice it too thick, and thus has a higher BP, the coil can get too hot and cause filler-charring. But there are certainly reports of people using VG juices with a kr8 carto, and with success.
By "trashed", I assume you mean burned. If by trashed you mean flooded, then that is a liquid absorption issue, and the liquid needs to soak into the filler more before
vaping.