1) I actually agree, or atleast make it an option for us. Making our hotbar less cluttered and more sorted with Consumable, Scroll, Spell, Ability, etc would make the menu much easier and less of a hassle.
2) Some vendors should have guards or people seeing them when it makes sense, it should be a challenge to steal from a merchant, which would also solve the problem of Pickpocketing being able to break the game's economy. That said, they should still have their magic items (unless they consume em like a potion or scroll or arrow) when you kill them because the consequence would be the town or the town guard is hostile and now the game is harder and you messed up a ton of quests.
3) Pretty much a consensus of the majority on this forum with a few however arguing it isn't an issue. Now how to fix the issue is one believes it to be an issue is the thing people disagree about.
4) Agreed, at least from an aesthetic angle. I'd like to keep things sheathed when talking and unsheathed when exploring.
5) There is already differing rewards for doing it in different ways, but it is more early so eventually that may be expanded in different quests. A notable one is the whole shadow druid thing and how you handle that.
6) Agreed. Any ability that adds an extra dice should have the graphic showing that extra dice being rolled and then added to our result. Also I argue that instead of showing the minimum we need to roll, show us the DC and how our things add up, and automatically at the end combine it to one number comparing to that DC.
7) Things we perceive need to be highlighted better to the player.
8) I haven't had this issue but it couldn't hurt to add.
9) AGREED.
10) Yeah, sneak attack is meant to be more automatic once a turn so having it toggle-able or even a prompt once you hit would be good.