A few weeks ago, I reached Expert on my 4th contest and found a new button on the sidebar: "Propose a contest/problems." I didn't think much of it, until I talked to my friends about this. One of them did not see this button until they reached CM and their 17th contest.
I searched around and found these two blogs on the topic:
It seems like these blogs have not been updated in a while, and I haven't found more recent blogs answering my questions. So, I would like to know:
What is the exact requirement for this button to appear, and why does it seem to be different for different people?
The requirement seems to have changed since these blogs were made, but I did not see any updates on the blog posts. Where are these changes being publicized?
Thank you in advance for the information!