Why did the user's contribution drop by 35%?

Question

Toaster

I periodically take all sorts of metrics. Not by hand, of course. Not the point.
In general, the contribution of one of the users at the end of August was about 630. And now it is 406. How could the contribution fall as much as 200 points in such a short time?

Answer 1

Without reference to the user, the answer is: somehow .
When other users unrate their content:
In case of user content change:

• Removed user response: removes all "likes" and recognition as a solution
  
• User's response moved to comments: tantamount to deleting user's response
  
• Removed a question that was answered by a user: tantamount to deleting the user's answer
  

https://toster.ru/help/rating