I also kind of wonder how prevalent hoarding/sandbagging really is. It seems to me that a lot of what people are talking about here is mostly just conjecture.

I personally added the vast majority of my points on the last three days, including ~600k points on the final day. I phoned it in for the first six days, then spent 8-10 hours a day crafting and turned in the bulk of what I made before bed, a couple hours after the daily cutoff (so most of what I crafted on day eight didn't appear until day nine and most of what I crafted on day nine didn't appear in my total until the final ranking). Sure, of course I realized that it benefited me to do that, but it was also just convenient for me. It was less a grand scheme to trick people for competitive advantage and more just... not wanting to pause in the middle of a productive crafting session to go play Kupo of Fortune fifty times.

It sucks to think that you have done enough to place and just miss out, and I have sympathy for anyone in that situation. But I am kind of curious why the assumption seems to be that someone who adds 100k or 200k or 300k points on the final day was saving up crafts for days and not just crafting at the end.