(By the way, if I'm not mistaken, my Karma dropped exactly 100 points the moment this change rolled out. Possibly a symptom of some counting bug in the new (or old) version?)
Strange. The calculation for total Karma has not been touched by these recent changes.
Is the karma shown that accumulated from posts and comments that were made within the past 30 days, or from all votes on all posts within the past 30 days, regardless of the age of the post or comment?