One of your questions was removed by the roomba service. It had +5/-5 votes to it, which sum up to +40 points.
Since the question is removed, the reputation is lost. No humans intervened in the deletion, so nobody is out to get you.
@AsafKaragila Sorry about that. I thought about leaving the link in a comment - but including it directly into the post seem more natural. (And I thought you wouldn't object to such change.)