Recently, I realized a funny incident.
The incident was happened for two days.
Day 1 (June 28, 2017)
In this day afternoon, I realized 3 out of 7 my blogs was downvoted, though there is no blog in recent actions. It is sad, but some of this is so funny: The number of downvotes in all 3 blog was "-10".
1: A mystery of CF rating distribution (Link)
2: A mystery of CF contribution distribution (Link)
3: A mystery of correlation between rating and contribution (Link)
All of these are -10 votes differ! Why!?!?!?
The second story in this day is at night, which is a bit happy.
There is much upvote in a comment, though there is no recent action! (In addition, the differ is "+10".)
(Also, I felt suspicious about this because I think tomorrow maybe happen an incident about "10".)
Day 2 (June 29, 2017)
As I expected, an incident happened in day 2 afternoon.
There is some downvotes in other blog, which is 2 months ago and of course there isn't the blog in recent actions.
4: Square869120Contest #4 Editorial (A-D) (Link)
OH! SOMETHING HAPPENS! I expected -10 votes as previous three so the blog post rating is going to +19 -> +9, but this is +10. Interesting. (Note: All of -9 downvotes happened in 5 hours.)
=============== AFTER 4 HOURS ===============
Finally, the blog's rating decrase by 1. As I expected, the number of downvote was "10".
Summary
The incident is so mysterious and funny. A mystery about the elected number: "10".
In one sentence conclusion: "+10, -10, everywhere!".
Thank you for reading.
UPD: Thank you for gongy to react my funny story and write a blog. (Link) Thank you very much.
Update (Day 3)
Finally, the blog rating was temporary +16, but this was -50 at the end of Day 3.
In addition, the blog's rating change is really interesting as follows:
Time elpased | Upvotes / Downvotes |
0 min | 0 |
15 mins | +7 |
18 mins | -3 |
60 mins | +16 |
8 hours | 0 |
9 hours | +2 |
14 hours | -19 |
18 hours | -7 |
24 hours | -30 |
36 hours | -50 |
I hoped that the incident won't got worse, but it was worse very much. The number of downvotes in the incident was:
Funny story | Myst. Vol 4 (deleted) | Myst. Vol 3 (deleted) | Myst. Vol 2 | Myst. Vol 1 | s8pc editorial | Total |
-60 (0 -> -60) | -47 (+25 -> -22) | -25 (+50 -> +25) | -51 (+114 -> +63) | -25 (+154 -> +129) | -10 (+19 -> +9) | -218 |
The next episode (July 22th)
The incident seems to be end, but this happened again. At 7/22 20:00 JST, suddenly, most of my blog downvoted! I thought why this reason is, so I decided to update this blog.
Tutorial | Funny story | Myst. Vol 2 | Myst. Vol 1 | Total |
-20 (+180 -> +160) | -15 (-60 -> -75) | -20 (+63 -> +43) | -20 (+129 -> +109) | -75 (Total -293) |
Funny Story with "20"!?
I think this incident is so serious, and I never heard a bigger downvote incident than it in CodeForces. I really want who made 10 fake account and downvoted me. Making fake account is also an immoral thing, so please comment this blog if you make 10 fake account.
You are God in mystry solving.
Btw i think it is just coincidence
A notorious one.
Maybe someone created 10 fake accounts and downvoted you.
Then why he will upvote on his comment
10 Fake accounts? I think some other reason works. If your saying is true, I think creating 299 accounts and all give downvote is not a fantasy.
UPD: "The tens" downvoted this blog and got 7 -> -3 in 3 minutes. And, difference of 7 and -3 is exactly 10. It's not an accident!
I don't think this is true. when this blog is out for only at most 90 mins(which is getting this much attention), it is unlikely that no one else upvoted and downvoted. So I believe for this case it is a notorious coincidence.
I think this is what he was implying in the whole post. Kinda sucks.
I didn't get the point...
You memorize the upvotes on your blogs and take screenshots of them? :D
Inspect element works here :D
Maybe create a blog showing the distribution of votes over a given time period?
Creeeepy
I'm really surprised that this blog isn't titled "mystery of contribution dropping" or "mystery of 10"
Because I said following comment in previous blog (Link):
I'm really sorry to make mystery posts everywhere in codeforces.
I'll do my best to make a better title in next blog. :)
So I considered title very much. This is why this title isn't "A mystery of..." .
which means this blog should be -3 originally? lol
I have one 10 in my handle !!! ha ha :D
And now the blog rating is -10. Several mins ago it was -9. Did you downvoted this blog to make a 10? :)
I just realized that user square1001 has one 10 too. How many user have one 10 in codeforces?
and now this comment has 10 up votes ! 10 is a magic number :D