Sorry might be a dumb question but when you say intake you dont by chance mean intake manifold or CAI do youYou're in luck. That electrode is *not* fouled. You most likely have a slight gasket leak allowing oil to seep in to the plug well. As you pulled the plug, it was able to work it's way down the threads.
Granted, that means you have to figure out if the gasket is compressed or the intake is loose, but that may turn out to be easier to deal with than stuck or damaged valves or seats.