The concept of 1 quest per day at the trader would be a fantastic change in my opinion and it should have honestly been done when quests were first introduced in A17, but better late than never.

It makes absolutely no sense that a trader would offer you multiple quests to complete on a daily basis. Realism aside, this would also be great for balancing, especially early game when there is limited items to sell. If there's a coveted item that you really want, either give up hope, or explore to find a new town and take a quest from another trader to earn those dukes. This would also greatly encourage players to go deep into Better Barter & Daring Adventurer.
I know the goal of this isn't to crush "evil spam questing" lol. But honestly, I'm not a fan of spam questers - I've only been doing 1, max 2 quests from a trader per day for a couple playthroughs now, and I find it to be a better experience overall.
Also, acquiring a bicycle is far too easy right now. I'm hearing people getting that reward from the trader on the morning of day 2, which is ridiculous. This cancels out the gameplay path of crafting one yourself because, why would you?
@Roland For people who are against this change, I propose a compromise of sorts. Perhaps an additional bonus to the Daring Adventurer perk would be the ability to take two jobs from the same trader per day? It could be locked behind rank 2 or even rank 3 out of 4.
Alternatively, perhaps the player could accept multiple quests per day from a trader, but just one per tier.