The
rules state
"Don’t “remove from list” just because a vehicle’s been advertised for sale, was involved in an accident, or hasn’t tracked for a while."
This is often what trusted users go off when approving/disproving edits. Especially since as has been mentioned sometimes buses can be rebuilt after fires. Normally after a fire evidence comes out from staff sources in the discord saying what the plan is with the bus.
Inconsistencies happen yes but that is because there isn't a definitive guide of 17,000 pages on how to deal with each edit and there's around 50 people with permissions to approve/disprove edits. Trusted users are... Well... Trusted to make edits and approve/disprove in line with the rules and where something isn't explicitly stated, use their discretion and common sense. Where there is an inconsistency like this, it's welcome as it means trusted users can hold themselves or eachother accountable and can lead to better guidance around the rules to reduce any inconsistencies.