Now, as I mentioned that in my post (and many times before in this topic), post number shown in Merit Dashboard is heavily affected when there is some big clean up by local mods, like it was case in Russian board for the last couple of months. As seen in Merit Dashboard, in the board called "Oбcyждeниe Bitcoin" there was negative difference of 3094 posts, meaning one of your mods probably deleted whole topics, that lead to this huge difference, and skewed numbers. And I even mentioned that in the post you quoted, as seen below

There are no large new topics in this section for a long time, this is the smallest section of the locale. A moderator will never delete a huge thread. It will either be transferred to another section of the locale or taken to the Archives. There are no major topics from this section in the archive, which means that all topics are in place.

I checked the data from 2 services over the past two months and this is the picture:


Turkish - 9698 (9251)
German - 4026 (3787)
Russian - 7753 (3379)
Portuguese - 1247 (1338)
Italian - 1139 (1108)
French - 1135 (1037)
Indonesian - 1085 (880)
Pilipinas - 751 (801)
Croatian - 726 (745)
Spanish - 671 (619)
Arabic - 203 (177)
Romanian - 142 (149)
Polski - 117 (112)


Turkish - 19764 (10272)
German - 3491 (3361)
Russian - 8284 (1787)
Portuguese - 1588 (1565)
Italian - 1088 (1067)
French - 944 (902)
Indonesian - 1310 (1241)
Pilipinas - 809 (821)
Croatian - 666 (687)
Spanish - 602 (508)
Arabic - 210 (208)
Romanian - 145 (140)
Polski - 96 (97)

And what we see is that the difference between the two services has a small margin of error. And as you said, most likely due to the counting of deleted posts. But not with the Russian section. Judging by these numbers, there is simply a huge number of posts being deleted. But this is not the case.

And if you look at the diagram for counting the number of posts that I made, you can see that the counting algorithm broke about six months ago and began to show incorrect data for the Russian locale:



We need to look for an error in the algorithm for counting Russian posts, because this is where extremely dubious data has been appearing for many months in a row.

And I wouldn't have focused on it if this broken data wasn't misleading. Because of this data, discussions about the death of the locale began to take place in my locale, and people began to speculate about what caused such a sharp drop in activity among posters. But in fact, there is no sharp decline and there was not. Just crooked counting algorithms that sowed the panic.