I just got my progress email and I have some good news and some bad news.
First, the email is much more full of interesting statistics. That's great! I'm very happy that you've added so much detail.
However, the "minutes practiced" number is wrong; it says
"You've practiced for 0 minutes in the past three days (7/02 - 7/04)."
This is not correct; I practiced for several hours over those three days. All the "seconds per item" counts are also zero, maybe for the same reason.
Then it says "Your retention rate for character definitions for the period was 86.9%." OK, that's great. Then there's a new paragraph that says
"You learned three characters (now at 842 total). You reviewed 64 items, so that's 0 seconds per item."
If this is referring to definitions, it shouldn't say "you learned three characters", which seems like it's talking about something else, like maybe writings. It could say something like "you learned three character definitions". It's not even clear that this paragraph goes with the previous paragraph.
The same issue applies to the further statistics.
Unfortunately the email is now quite long and kind of causes stats blindness; I don't think a textual format is really the best way to present these numbers any more. A more compact table or a spreadsheet would be more readable, and would be much more useful as we could then remix the data.
James