Alt accounts are mainly used to AFK mob grinders or farms to generate income. Since spawners and crops only work when the chunk is loaded, alts are able to load multiple chunks to gain money. Alts must be in the same chunk for farms, and within 15 blocks of the spawner for mob grinders. Alt accounts are able to join factions as alts using the command
/f alts join (faction name).
AFK machines and console clients to have alts automatically rejoin the server after a reboot are allowed. However, alts are not allowed to own factions to gain a second position on F Top, store TNT, or transfer people between the main and alt to increase party sizes. This provides an unfair advantage, and you must not accept people into your faction who have an Alt Faction. You are also not able to hide wealth by storing significant valuables or amounts of money on an alt.