Earlier today Maxwell came to me asking about his server crashing. Again, similar circumstances to this. Zapk joins, does something suspicious and it crahes. Here's a PM he sent to Badspot.
"I'm not saying it was definitely him, but I have reason to believe so.
I was hosting, and then zapk joined and told a user named goldentits to click a brick, he did so and next thing the server + my computer crashed
I have proof from the user that clicked it saying what he saw:

and on the console, the server just stopped abruptly after zapk and golden talked about clicking the brick
the console log is here:
[snipped the log, basically it showed exactly as described above]
I didn't have any autosave addons so I can't know for sure if it was him that did it or not, but the game just went "blockland.exe has stopped working" and then I blue screened.
I don't know how much you can find out about it but I don't want zapk running around crashing servers if it really was him.
his ID is 44868"
Also had VCE.