I'd like to circle back to the real purpose of this thread (the contents of the banlist, rather than its existence) and weigh in on the recent discussion of a few cards.
Big Country: I'd really like to see this card banned, since it's an almost mandatory pick at any point in the draft. If played with 2 rooms, it usually sets a baseline of at least ~50 points for your game. If played with 3 (or even 4 rooms) it still gives you a very high value action later in the game -- getting 2-3 points and 4-6 food on your SP action at no further cost is incredible. That kind of power and flexibility makes it incredibly hard to pass up, and I find that it wins disproportionally often, even in very competitive tables. Even when it doesn't win, it very often guarantees a 2nd place, which is very relevant within the context of a competitive environment with this ELO system.
Begging Student: Definitely needs to be banned. Just an incredible card that gives unprecedented action advantage. Even mediocre occs often shine when they're being put out for free and with the right timing and there are several noteworthy combos (tutor, patron, paper maker, bookshelf, bookcase) that really amp it up. Like Big Country, it's almost always wrong to pass it during the draft, and I don't think that's good for the game.
Assistant Tiller: I recognize its strength, but would not personally clamor for its ban. It's certainly insane when you hit the critical amount of day labor cards, but I personally don't find it too oppressive on its own. That being said, I would not oppose a ban or be overly sad about it if that's the majority opinion.
Potter Ceramics: At this time, I would not support a ban. It's certainly a very strong card, but only when combined with other combo pieces (primarily baking support, but also clay injection), which means an early draft can backfire. On top of that, I think there is often a significant cost and tempo price to setting it up, which can really impact your position in the growth queue. Overall, I think it's fine to have 2-3 card combos that can be costly to set up and do nothing but give you an efficient feeding plan.