Even the people who did the LOX experiment were quite explicit about the potential for disaster involved. One charcoal briquette soaked in LOX and then ignited would combust almost instantly, releasing the energy equivalent of about1/4 stick of dynamite.
Dumping LOX on a prepared pile of charcoal (with an ignition source in place) results in a fireball of 52270 C or more (hard to judge the flame colour on a web page, but the intensity of the flare and pure white colour would seem to indicate that). A machine gun barrel is glowing red at 6270C, the gas plug is straw yellow at 14770C and blacksmith hammer forging metal at yellow white heat are dealing with temperatures of 29270C, to give you some indicators of high temperatures you might encounter.
Most of these things you see on the web are best filed under "Don't try this at home!"