In Polish online press under every mention of Ukraine you will see lots of anti-Ukraine comments. These are written in broken Polish with errors hinting to Russian origin. The amount of these comments is way too high for grass roots support. They are clearly sponsored.

What I find most amazing, though, is that somebody somewhere thinks that it is worth paying money for comments on portals like gazeta.pl — this is like sponsoring YouTube comments! Nobody sane ever reads them, it's a cesspool anyway.