We all have the same issue; Should I clip all my props? Won’t it make players annoyed and cause frustration when something that looks like it should be wallbang enabled/walkable is not?
The answer to the first: Yes. The answer to the second: Yes.
There’s a compromise to be made here, one that a lot of mappers struggle to find a balance between. For a great example, look at Valve’s maps, especially fine polished ones such as Dust2. These take a more balanced approach to clipping, as well as employing some clever techniques to make the clipping as smooth and unnoticeable for the player as possible, such as at the stairs leading to B as seen in the cover image of this post.
This isn’t without it’s issues, obviously, so don’t take these to be the holy grail of proper clipping, as you can still get stuck at specific points on the map, but it’s a good general practice to follow. The two easy ones are as follows:
However, a more contentious example would perhaps be the idea of: