I dropped out in the second question... Why? A survey should be anonymous. And what is the secret reward?

I am happy I did what I did and dropped the survey after reading this story and the comments.

Now these algorithms on Medium have changed(back like they were last autumn???) at the time when I suddenly dropped from more than 1k reads every week to 20.

There have been at least 4 changes since then... These changes is hard to understand, and it is not very inspiring to write with invisible letters.