Dipping is just a free cheat. I'd rather play a game that doesn't include such ridiculous mechanic but they won't remove it so something has to be done.
According to me a rare coating material that would cost action/bonus action to apply is necessary both for consistency and action economy.
We could add a check to see if the coating work or not, but without bad consequences if it doesn't work (you would already have spend and action or bonus action + a material)
I'm all for this as well. It would make sense that arrows or a blade would need to be coated beforehand.
Good ideas. Personally I'm less of a fan of hard DC's. I like it when multiple stages of success and failure (other than nat 1's and 20's) are getting implemented in games. For example rolling a 9 on check to break down a door with a DC of 10 wouldn't be a complete failure, but it would take you multiple swings and maybe even exhaust your character. Or for pickpocketing someone the higher you role the more of that person's inventory can you access. (Ok, slightly off topic because a skill check, but just to give an example how differently you could handle DC rolls)
You've got a good point Marajango. It got me thinking about how to avoid the situation where all four party members fail the DC. For example, a failed check for the first party member could lower the DC for the next party member. They still hit the door, but only weaken it.
Destroying structures would then need different mechanisms in and out of combat. For instance, fo destroy a support beam during combat, in order to make a structure tumble down, it would be logical to hack away the beam's hit points turn by turn, while the battle is raging.
Personally I think these should have a DC as well. Ability checks help players embrace the world of dice rolls. So any good opportunity to have them, I would like to have in the game. I'm concerned HP for structures to be used in combat could slow down the battle as well, where a DC would allow for the structure to be destroyed in 1 turn as it is in the game.
Also i would like to note that soooo many people here is beging for Dip (since Larian will surely not remove that) require some resources ... like we all have countless Grease bottles in our backpack.
I agree that Backstab should be re-worked, but this dont seem like good way.

//edit:
Fun fact: I just noticed that you sorted them from best idea to worst one.

Yeah, I almost didn't include dip and backstab since they're hot topics amongst a lot of players in early access. I wanted to make this thread to see if other players would be interested in more ability checks. Also, to hopefully brainstorm some quality opportunities to add ability checks into the game.
I'm one player and I would like to submit the feedback through the direct channel, but only once I know it's something that would improve the game. I'm glad to see posts are agreeing that more ability checks would help make the game better

Also, I've enjoyed reading everyone's feedback.