OP updated:
- In the first week after the announcement, 286408 posts were made (-19.05%).
- In the second week after the announcement, 280503 posts were made (-20.72%).
- In the third week after the announcement, 259694 posts were made (-26.60%).
- In the fourth week after the announcement, 263685 posts were made (-25.47%).
- In the fifth week after the announcement, 240339 posts were made (-32.07%).
- In the sixth week after the announcement, 240045 posts were made (-32.15%).
- In the seventh week after the announcement, 219689 posts were made (-37.91%).
- In the eighth week after the announcement, 217774 posts were made (-38.45%).
~it is obviously that there are so many guys who can not abuse the system and have still got stucked at Newbie.
Most of them stopped showing their shits around the forum.
If I look at
patrol, I'll be the "glass half full" guy who says many are still spamming

One more thing, the total merits distributed within the week from 28th of October to the 4th of November fell dramatically.
I see nothing out of the ordinary. Look at
coinlocket$'s graph:
Merit distribution is back to the long term "bottom", after a sharp peak 8 weeks ago (largely because of abuse) when the new Jr. Member restrictions were implemented.
There was however a large Merit source removed in the past weeks.