Your point is that some people are educated in a system where plagiarism essentially does not exist, and so coming here they do not understand it. I'm going to go off on a slight tangent here, but I hope you will indulge me while I make my point:

In my professional life, NSFW does not exist. I work in healthcare, and so am exposed to nudity, blood, guts, gore, malnourishment, injuries, deformities, military causalities, death, etc, on a daily basis. I write and review for journals, attend and present at meetings and conferences, lecture students, teach on courses, discuss online, and have never once seen or used a "NSFW" tag, even when the content includes some of the most horrific pictures imaginable. This is the standard that my colleagues and I live and work by.

However, I have the common sense to realize that if I am approaching a new medium of discussion, that it is wise to familiarize myself with and adhere to their rules, as these rules may be different to what I am accustomed to. If I went around sharing pictures of severed limbs and other such things that are commonplace in my day-to-day on this forum, then I would be banned and it would be entirely my own fault.

I'm afraid I have very little time for the people who protest their ban by pleading ignorance. It takes all of 5 minutes to read the rules.