I have to say I appreciated but also laughed at the sheer number of the qualifiers you're discussing in your post... "it feels to me", "I find I", "I do wonder", "I imagine", "this may"
I find it makes for less combative discussions. So I like it.
I'd say that these qualifiers are much more useful in informal communication, like HN, and inappropriate for long-form stuff like essays. Essays are longer, more coherent, and denser.
I do wonder how this style of writing has impacted the psychology of argument, I imagine there are others who read this style of writing and assume it is written in stone or as an objective statement, and not a subjective one. This may just be human nature.