Backstory: I'll start this off by saying my reputation is at 1 for a reason. Not disputing that.
My main concern is the manner in which this happened. It's readily apparent that at least two users were involved in deliberately lowering the total number of reputation on my accounts across unrelated questions. The users in question deliberately down voted several questions/answers of mine which were asked/answered years ago. This was done across multiple boards on the same day in hours.
Proposal: If the same approach were used with a larger group of people on a member who they wanted to target, would the approach work on a target with significantly higher reputation then the group in total? Obviously the amount of damage that can be inflicted on the target increases as their number of interactions with the community increases. Mathematically would this vector of attack be feasible? And if so how can such an attack be prevented?