I skipped that rule beforehand and I really believe plagiarism applies to image too so I've linked to the image at the source on several occasion.

OP, do you know what are the most common reason why Bitcoin forum users have been banned so far?
Most of the users banned case are due to plagiarism and maybe you won't be banned now that the mod didn't find any valid evidence. But you will still be banned if someone find evidence which is then reported to the mod. However, it is a fact that plagiarism is the thing most often done by users, especially those who do not understand the rules of the forum.