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Pretty much, when new those dowl/machined inserts are mega tight, once they've been rattling around a few years you can just about pull them up. So for me normally run with a floor + BBX panels, if I spot a nice sofa/washing machine/dishwasher/sideboard that I want to take home with me, remove 4x M5 bolts, leaving the bbx panel adapters in the frame, take off actual panels and lay at the back/bottom/wherever, insert free loot, put a strap round it, ride home.
If you've access to horse box/instrument box/chandlers materials you can get those neat 90 degree bayonet type fitting quick locks (come in M5/M6/M8/M10) so no tools required (always rattle a little though).
Thanks. Those LvH taxes are high. But understandable.