Last time this was discussed here was in Change vote dropping criteria when a user account is deleted.
Thought the case had been resolved, because since then, I had not observed a 'user was removed' with significant* amount of votes withdrawn after deletion, until few minutes ago. Was this case an actual fraud?
*I did some quick digging and found that the amount of votes removed was significant because several other users were affected as well (I lost 90 rep). Some examples:
- Joseph: lost 670 rep.
- PolyGeo: lost 445 rep.
- ahmadhanb: lost 200 rep.
- Bera: lost 150 rep.
- JGH: lost 80 rep.
- Spacedman: lost 65 rep.
- Mike T: lost 35 rep.
- Mapperz: lost 30 rep.
- Jeffrey Evans: lost 20 rep.
- Taras: 10 rep.
It does not seem to be a case of targeted voting (many users impacted).
Maybe it was that guy (userxxxxx) with low rep and low participation (regarding comments and posts), but with more than 14k useful flags and more than 5k votes (not seeing his/her profile anymore)?
Can someone, SE staff or moderator (via SE staff contact) explain what happened? If it was not a fraud, can the votes be kept?
PolyGeo's answer is accepted because it links to the official answer in MSE. However, the referenced answer lacks transparency by not confirming what seems to be the obvious (a single user affected the entire network for many years and went unnoticed to the system) and pointing to another post where it is said ('not all massive vote discarding is result of fraud', and the other possible reasons are not listed/explained).