Most of us here really don't need a lesson on "tatemae/hone," nor the appellation that we just don't "get it."
Please note that my post started with "Hi Szczepan". Please note that the "lesson" (in quotes to emphasize that this is your word) includes the appellation "for anyone interested" and "supposed." Then please indicate how I communicated that "you (plural)" don't get it. (Also not sure what "it" means.)
Then perhaps I can understand your post enough to respond with something interesting. Otherwise your post comes off as strawmannish.