Strong chaotic neutral energy here.
One of our customers once delivered some data with an encoding error that I could only explain by mistaking one Windows specific encoding for one DOS specific encoding (or maybe it was the other way around).
We aren't using DOS or Windows, so in that particular case it was pretty clear that it wasn't us who had screwed up the data.
Satan is that you?
@xssfox create yourself an email account firstname.lastname@{some domain looking like a placeholder. lorem-ipsum.it or something}, or emailgoeshere@domain. Always register usernames like user1 or testuser, ...
Yes, I fell victim to one of the students in one of our fourses that had firstname.lastname as username and email address at our university, making me debug the apparently broken CSV reader module of my grading helper application.