We agree on pretty much all of that. (Though for some reason I still don't have any idea where you were ever going with the thing about transparent walls). You're making my case while appearing to argue with me, which is the part I don't understand.
I keep trying to explain and re-explain the transparent-walls issue (most recently in the post you quoted!), and every time I do you seem to come back with some variation on "I agree, but I don't have any idea what you were saying about the transparent walls."

I'm happy to try again, but could you please provide a little more specific feedback about what part of the most recent explanation doesn't make sense to you?
Adding "well" to "can't see" only comes up when you need it to because of the exceptions. The blind condition gives you certain penalties, and MOST OF THE TIME it means you can't see. Sometimes it just means you can't see WELL. You still have all the penalties of the Blind Condition. I've never been trying to say that you don't get all the penalties of the Blind Condition, or that being Blind always means that you can see a little. The Blind spell would blind you, of course.
You claim to be applying all the penalties of the Blinded condition, but you're not. One of the explicit penalties of the Blinded condition (first bullet point in the condition) is that the Blinded creature "can't see", so when you say that "...sometimes it just means you can't see WELL. You still have all the penalties of the Blind Condition." you're contradicting yourself.
EVERYONE has agreed on that since the beginning of the thread.
Then we have different interpretations of what positions other posters have taken. I understood both
@FrogReaver and
@Hriston to have argued that only the transparent darkness version was supported by the text. I believe
@FrogReaver may have reconsidered at some point midway through the thread, but I'm not sure what they think now.
Similarly, other posters, particularly at the beginning of the thread were making rules-based claims in favor of the opaque ink-blot interpretation. At one point I made an overly broad claim that they hadn't made any such claims, and
@FrogReaver demonstrated otherwise, so I retracted my claim. (The thread is too long to make it practical to link the individual posts.)