I can confirm I manually installed nothing, save SKSE, and everything is deactivated in MO. But, upon looking through my Data folder, I checked out the Scripts folder therein, saw the usual SKSE scripts, but also a whole crapton (10,000+) of other scripts. I have no clue how they got there, seeing as everything was installed through MO. I moved them out of the Data directory for backup and then ran Skyrim, but the problem persists. The papyrus log looks nearly identical, even with the scripts gone. Out of curiousity, I ran Skyrim with SKSE, outside of MO, and surprisingly it didn't crash. So the problem must somehow be related to MO, not Skyrim itself.