we'd like to think that having two accounts like the OP example can by many be interpreted as dishonest to the players. But we can also see a reason someone might do it, simply to make it look like their RP has gathered interest than it technically does. But that is more of a false cushion than a true benefit, as it gives false safety to the GM.

If the GM also favors his (or her) alternate account character in the story, then it is first and foremost poor GMing. If the players have to discover that the two accounts belong to the same individual, then that will feel like a betrayal when they do. That the GM lied to them, an act which could break the RP.


However, having multiple accounts that are labeled as such with unique purposes can work, like in the example by [@Lady Amalthea]. That's one way to do multi-accounting right. For most people its unnecessary, but still valid.