I'll add more feedback as I have it..
1) Definitely not a fan of not being able to directly see my inventory/wantlist on a card by visiting its individual page. Now I have to click extra buttons just to show the exact editions of a card I have? What problem is this solving?
The problem that there are people with hundreds of printings, and hundreds of decks for some cards, and the left column was very large, slow, and making the whole page unbalanced. I could go half way I suppose and show a max of 10 or so, with a "Show More" button.
2) Not sure why I can see "Edit" buttons on someone else's tradelist. Thankfully I can't actually edit them...
Because I'm a sloppy programmer