They are Kremlin trolls, they use RT, Sputnik, SouthFront and other Russian propaganda outfit to promote Putin
You can read about it here https://de.usembassy.gov/exposing-russian-disinformation/
and here http://www.stopfake.org/en/news
Better Putin than Erdogan.
More about SouthFront
Southfront doesn’t just distribute or redistribute disinfo, it is a production center for Kremlin disinfo. The zashifrovka agenturno-operativnogo meropriyatiya is pretty good with this one, at least as regards the primary southfront.org domain.
Quite professional in a way one would expect from an intelligence officer and/or criminal. Not good enough to completely hide their tracks, but better than what many others do.
http://aktivnyye.com/t/20160120-southfront.html