I've been having a relatively good month, rep wise. Most of my highest performing answers have been written in the last month and I've had more than my fair share of 200 point days.
One thing I noted was that the 200 points are not impacted by downvotes, if you have enough upvotes. In other words, partial points from upvotes are applied to offset any downvotes you may receive.
As an aside, I've started going through some of my older, non-performing answers to delete them. Not all of them were 0 point answers per se; some were answers that got several upvotes and several downvotes. Obviously I wade into controversial areas from time to time; something I'm going to try avoiding from now on, but I digress.
All this got me thinking about countbacks when I delete answers.
If I delete an answer which 'overscored' on a high rep day, do I only lose the rep points that I actually was awarded on that day, or do I lose them all?
The corollary of that is if I delete an answer for which the downvotes were offset by either the same or a different high performing answer, do I get all those 2pts back?
Yes, this could get complicated real quick if there's no record of ACTUAL rep awarded against each question (rather than upvotes and downvotes) and I don't know if SE keeps such a rep table in back. So instead of asking all the edge case questions, I want to start with the simplest form of this;
Does the 200 rep limit per day get factored into countbacks as a result of deleting an old answer?