I have been researching the issue of kremlebots since 2014, here are the facts that I have collected during this time: https://zen.yandex.ru/media/poravalit/kremleboty-kto-eto--5ad4a11f48c85eceb1ceccd3
These are either bots programmed to write certain comments and posts with a political pro-government theme, or people who manually write pro-government comments. I don’t know anything about the first one, but about the second one - I myself was one for a couple of months, because for a poor student they paid very well.
There is an organization that hires people to spam on the Internet. This organization is headed by the chef V.V. Prigogine. People there receive money for writing comments on news / posts / in groups that they indicate. More details can be found in Navalny's investigation:
Or in an interview with kamikadzed with people who worked there:
If we are talking about people, and not about programs, then bots are users of sites who, either out of conviction or for a fee, actively support someone's ideas, positions on some issue, in this case, the positions of the official authorities (the Kremlin ).
It depends on how to consider the concept. Either it can be natural BOTS with scripts and propagandistic writings, or it is tightly repulsed pozreots who praise the current regime and the Solntseliky PU.