We usually speak and write "our" slavic language, but we understand also others, means czech, slovak, russian, ukrainian, polish. So if I speak to czech or polish guy, I speak slovak and they speak czech or polish. It is because we have many slavic languages used in small nations, Slovakia has only 5 milons people, so our language is "small" we simply must learn other languages.
We also mostly understand german, but germans do not understand slavic languages. So I speak english with germans and other west european nations.
So that forum is written mixed in slovak and czech language, and noone cares about it. So do not be confused if you try to translate it and translator fails :- ))) ... may be you try to convert wrong language :-))) ... but picture is universal and it tells it all, so I do not see problem.