Audience: "Spectators accepted or desired" vs "Secrecy demanded"
Quite some LARP people who want to avoid spectators, since quite some conservative or religious people tend to associate some fantasy stuff to be "satanistic" or "sacrilegious". Thus, to avoid really annoying discussions, they prefer no spectators.
Components: "Features of organized gaming (e.g., rules, character sheets, scenario scripts, in- and out-of-character designations)" vs "Absence of documented rules, character sheets, scenario scripts, in- and out-of-character designations; all “characters” are frontline fighters or operational support personnel"
There exist LARP system where there exist many rules, but also those where such things are handled in a more "loose"/"spontanous"/"improvisatory" way.
Relationship with law enforcement: "No concern with law enforcement in out-of-character life" vs "Demonstrated concern with law enforcement and prosecutions of similar criminal behavior"
Of course, those who distrust the law enforcement (often for good reasons) are suspicious to be extremists - that is what the FBI claims ;-) . Seriously: there likely exist LARP players with about any possible stance concerning law enforcement.
Equipment: "realistic prop weapons often discouraged in the rules"
It depends on the LARP system whether these are discouraged or encouraged.
Personal grievance: "No personal grievance toward out-group(s) outside the voluntary, fantasy world" vs "Personal grievance toward out-group(s) believed to pose an imminent and existential threat, requiring violent action" and Mood: "Euthymic and joyful; anticipatory fantasy to enjoy the event" vs "Dysphoric and angry; anticipatory fantasy to harm or kill the target(s)"
This depends a lot on the setting of the LARP: of course some cyberpunk, horror or dark-fantasy themed LARP will be much more dark than, say, some high fantasy or utopic science-fiction setting.