Even for English speakers, the subtitle experience with pirated movies is often lacking. Movies with non-English-speaking characters are often meant to have subtitles for their dialog and not for English speakers by default, but many pirated versions don't do this. I recently saw discussions online of a lot of people saying they went an embarrassingly long time without knowing there were supposed to be subtitles for the aliens in District 9 or the mute hand-signing girl in The Boys.