The quality of fansubbing varies greatly depending on the translator too. For example, Crunchyroll uses ASS format for their own subtitles (things licensed from

The quality of fansubbing varies greatly depending on the translator too. For example, Crunchyroll uses ASS format for their own subtitles (things licensed from other studios seems to use a simpler format), and some translators do a really good job very similar to the fansubbers. Case in point, I remember watching "Is the Order a Rabbit S3" in Crunchyroll, the English subtitles are pretty basic but the Portuguese (Brazillian) subtitles are great, including things like Karaoke in opening and ending.