Thoughts on Bottom 10:
Where is Feast? It simply isn't that good of a card, and while it adds a "touch" of certainty of hitting 5 turn 3/4, silver/silver already has really good odds of doing this.
Why isn't Rats in the Bottom 3? It has its uses (namely Apprentice and Upgrade), but man it is sooo much worse than say, Coppersmith.
Why isn't Scout beating Thief? Scout is hardly a good card (read: it isn't a good card), but it's better than Thief minimum, and I'd venture (ha!) to say it's better than Rats. It's actually a solid card if you are going to be adding green early or can take advantage of the reordering. Sure, it's bad in BM or many engines (read: it's downright awful) but not all games are BM or simple engines. A lot of complex engines can be helped by a Scout.
Why isn't Bureaucrat beating Pirate Ship? (read: Bureaucrat shouldn't be in the bottom 10, and Pirate Ship should be bottom 5 or 6) Both attacks are unreliable in 2P, but honestly the Bureaucrat attack is actually pretty nasty at times, especially early. Sure, in 4P games with no virtual money Pirate Ship will be good. But how many games are 4P with no virtual money?
Lastly, why is Coppersmith on here? I'll grant it's awful if you are trashing all your coppers, but a lot of boards have engine potential, but without trashing. Any deck where you can draw your deck and don't trash your opening coppers, it is a terminal +$7! What decks are these? Good Tac decks, Wharf decks, any board with KC, Village-Torturer, etc. I think it should be a minimum of 10 spots higher.