So today the "User was removed" happened but there's a difference between the reputation loss shown in the achievements dialogue (shows -70) and the reputation history in the user profile (shows -80).
I found a previous bug report that seems similar. rev 2022.6.8.42312
When votes are invalidated, whether you actually lose reputation depends on when that vote was originally cast. If you were rep-capped that day, the vote being invalidated won't actually cause your reputation to change - you'll be compensated for it by having a +10 assigned to the next upvote that day. So that day will now display as having earned 210 instead of 200, with the -10 today setting it back to 200.
For accounting purposes, that vote that didn't change your reputation is still listed in your reputation history to make the overall math work out. But you only actually lost 70 reputation, not 80. According to the log, your reputation dropped form 18,853 to 18,783 with the recalculation.
What you're seeing in your reputation history is a, let's say, interesting way of trying to convey that. It separated the "User was removed" event into two different ones for a reason. It wasn't two users that got removed. It was 7 upvotes that actually caused -10 each and 1 upvote that was compensated by other votes. The reputation dialog is correct in the sense that it is displaying your net loss for these events. The reputation history is correct in the sense that it is displaying the complete history of everything.
This is also not specific to deleted users - it would occur with any invalidation or other events that would cause rep-cap oddities on older days.
