When a message about certain number of gained/losed XP point
is shown, I'm already curious which actions were a reason
to this, but very rarely know an answer.
From design point of view, I think this could be just a bit
more detailed message of XP change, such as "you gained NNN XP points
(2=login,3=upvoted)"
From implementation point of view, I can say nothing,
and can easily understand that such improvement could not be
made.
BTW can I browse my own XP history? (I think there is a way)
Best wishes to you all,
Chicken