I'm just curious and not particularly concerned to know that when my rep changed from 2005 to 2003, I went to check the rep tab, and there I could see no reason for that happening which is the first-of-its-kind thing for me.
Any ideas?
Edit:
https://math.stackexchange.com/questions/4521786/combinatorial-marble-question
As pointed out by quid, above is the reason for the change of 2.
https://math.stackexchange.com/review/suggested-edits/1837091
for users below 10k, as MartinSleziak has shown, can check from the above link.
But still I wonder why it did not show up in the reputation tab?
My rep tab (Kindly focus on the "yesterday" part. No negative is present!: