Why should you ? That's the whole point of the modeling world... "Copying" sounds from every source availableAnd yes, I do feel just a little dirty using them.
Profiles for the Kemper Profiling Amp KPA : check Profile Packs - Bundle I at the bottom of the page, item 02
For Eric Jonhson fans - James Santiago cabs converted to KPA cabs - Free rigs and profiles - Kemper Amps Forum
GuitarAmpModeling.com • View forum - Speaker Cabinet Impulses there you can find IRs made from every source imaginable, including from the POD XT
When Fractal will release the new IRs, someone will convert them for KPA users, someone else in .wav format for for DAW users, etc... The only thing not "shareable" are commercial IRs (RedWirez, Ownhammer, Recabinet etc)