User blog comment:KodachiZero/Why Trading is Bad/@comment-5244332-20151230144843

Tbh Trading is only a viable strategy when

1) Units actually have a tier system based on how rare they are in the summons

-Brave Frontier makes every rare summon unit pretty much useful in their own way and also in a set rarity.

2) There is a currency that can be used to trade. Age of Ishtaria used the AP/BP potions strategy which while honestly broken is a good market strategy. Brave Frontier's Equivilant is really just Achievement Points (vs Soccer Spirit's Glory Points system, AoI's Rare Medals etc), which is not that well suitable for a trading

3) Any way possible for the game to be abused is cancelled. BF is way too easy to get by level limitations for instance. Logging in for a specific number of days (eg 2 weeks) is a good way to curb it though.

4) Proper action to ban RMT people. With a system like Gumi's it is hard to handle it.

TL;DR: This game is bad for a trading feature.