Good luck, FA.
What the professor did is creepy but the downside to the internets is that it is a smaller world than we think and you never know who is going to read what you write.
Before graduating, I nuked any kind of web 2.0 shit I did (Facebook, MySpace, etc.)
As for Powerslave, he's turning into ferrarimanf355 more and more by the day. It is one thing to be ignorant of racial slang used in the US decades ago; it is another thing to learn about it, and then deny it has any kind of correlation to racism. Which is too bad because I thought he was pretty good up until a week ago.