I realize that used sales only indirectly supports Carbide 3d by freeing people up to buy new machines, but it seems like a for sale forum would keep the CNC machines category cleaner and could encourage people to sell other stuff as well. Plus you can pin a disclaimer etc.
Some of us who may be in search of old hardware or replacement parts can support the budgets of those looking to buy the latest and greatest
I’ve purchased parts of folks here selling their old gear.
Seems like a community sort of thing, residual values help new purchase values.