Whoa, what happened? One Piece dropped HARD on M+.
Looking into this a bit more, we can finally figure out what
MangaPlus is doing.
Series that suddenly dropped are:
- all WSJ series except for Dr Stone and the 3 newbies
- Summer Time and Hell's Paradise, but not SxF
- all Jump SQ series
- Torture Princess and Spotless Love
Torture Princess and Spotless Love ALWAYS come out on Monday. So we are looking for a Monday on which WSJ, J SQ and Sunday's Jump+ titles all came out together, after the launch of Agravity Boys but before UxU, while Dr Stone and SxF were on break. This can only be January 6th.
(For extra confirmation, the Konjirou one-shot that came out that day is crashing too, going from ~4800 to ~2500. It had only been climbing up till this point.)
If the numbers gained on Jan 6th disappeared on Februari 11th, then that means that M+ is showing us the cumulated views for the last
36 days, or ~5 weeks, or (most likely)
4 WSJ issues.
I should add that all of these series are rising again now, which shouldn't be possible if they were removing the old views in real time, so it's likely that they are only resetting the views once a day. If I'm right, Konjirou should have dropped another 1000 or so by this evening.
It still doesn't explain why some series are much lower than they should have been (for example, that Konjirou one-shot had ~6300 views before the system change and ~4700 afterwards), but I'm guessing those might've been just mistakes? We'll see more of it in the coming weeks anyway.