I'm with you, lupercal. My issue is generally space rather than weight. I use a lot of 3kg and 5kg satchels and they rarely weigh anywhere near 3kg or 5kg. When I used to sell a lot of shoes the weight was sometimes important but most other items have size limitations.
When I first read about this I was excited because I thought "own packaging" meant boxes as well as satchels. But it appears boxes will still be priced by cubic weight rather than actual weight.
This seems just another price rise masquerading as something else. I can see it may be worthwhile for sellers of heavier relatively small items like books and electronics but not much value for sellers of lighter bulkier items.
