What did the person keep ?
Did the person discard anything - whether routinely or in the course of an intentional cleanup / purge ?
What is left ?
What's left after a person already discarded everything they were planning to discard - is everything they decided to keep, or at least, to not discard yet.
In other words, the set of items that have already survived the owner's own internal curation process. A collection of items that have *already been decided upon.
This is what interventions attempt to discard - in effect, overturning a whole lot of the person's decisions already made, if tentatively.
It's kinda like, in a hypothetical workplace, a new manager comes in and questions every single thing in sight, because that's not how things are done according to them.
"This needs to change. That needs to change. We will replace this system with that other system." - times a lot.
How does the hypothetical "employee" - the alleged "hoarder" feel in that situation ?
Like everything they've been building, every way of operating they're used to - is being criticized and dismantled, until there is nothing left.
This is how it is with an intervention based on the framework by "hoarding" "experts" - every single thing the person decided to keep, is being questioned.
This is why I say discard-centric approach is a disaster.