Kind of odd to go with 8, could the author not think of an even 10? And a couple of the trades listed aren't even that bad.
#8. Chi/OKC 2017 trade. I feel like this is so inconsequential it doesn't matter. It's like paying $2 for something at a yard sale that you can buy new at Wal-Mart for $1. Who cares.
#6. Iverson/Billups. Detroit needed to shake things up, and did, and this actually helped them move on from the 2004 championship team. It cut salary and let them try to rebuild. Just because they failed in rebuilding doesn't mean it was a terrible trade. And all Denver had to show for getting Billups was one trip to the WCF, not a huge win. Either way, swapping 2 aging stars for each other, I just don't view as a terrible trade.
#1 Bargnani to the Knicks. A bad trade for sure, but all that was traded was crap for crap. If Poeltl was lighting it up in Toronto it would be one thing or if Toronto was able to trade that pick for a star, but he's not and they didn't, so it doesn't really matter. Should be on the list, but not even top 5.
And again, not sure why the author would stop at 8. I can think of several more, Isaiah Thomas to Boston, Steve Nash to LA, Michael Carter-Williams for LA pick, the Bynum/Howard 4 team trade debacle, Rondo to Dallas, and I could probably come up with a few more if I think about it.