1F

In Joe's streams of Persona 4 Golden, he kept on going back to the first floor of every dungeon (referred to as 1F by the game), so that the items and low-level enemies would keep on respawning so that he could farm them and really slowly heal his party's HP and SP from the battle rewards. This was so that he could complete each dungeon without needing to leave it to heal up and get more items. This was especially funny because it made the game take longer, but it meant that Joe could complete each dungeon in one in-game day, which let him complete more of the optional content. Lots of people in chat got annoyed that he kept on spending so much time on 1F in all the dungeons, which only encouraged him to do it more.