I'm not new to SE - have some reputation on the SO side, and was compelled to answer a question on this site.
The question appears to have been removed / closed (unsure, I cannot see history), and along with it all activity and reputation vanished on my account. While it was only 3 upvotes and some discussion, it literally vanished (I had to confirm I didn't imagine it, because I earned the Teacher badge from the activity, which remains).
While I understand the notion of the reputation being reduced / removed, the fact that all history / traces of activity on my account was simply gone was a bit disturbing.
Would it be useful to show the negative reputation change, along with the positive reputation change, so that users can understand what took place? Or some sort of flag, comment, or other placeholder to at least identify the change?