What are these strange messages in the feed between posts on Habré?

Question

Habr

Sometimes I notice strange messages between posts in the habr feed. For example, as in the screenshot: what is this equality with bitcoin? Why is this? Where is it from? Image link: http://habrastorage.org/storage3/3ef/600/361/3ef600361b021385db9cf2c7f4ba5374.jpg

Answer 1

The mouthpiece of admins

Answer 2

This is the so-called voice - a separate type of record, which can be used with some frequency (in addition to UFOs) by two users - the owner of the highest karma and the owner of the highest rating.

Answer 3

UFO arrives and leaves notes.

Answer 4

even before the introduction of hubs, it was possible to read the records of the "voice" in a separate blog.