Depends on the species. If considering for Onisheep I would dig it and participate. Any other species I probably would be discouraged because it can take more time and be more complicated. I would totally dig almost anything Onisheep.
Genuinely surprised at the distaste in them tbh. I do have an ARPG, but mine like many allows you to buy customs, adopts, and do MYOs and not have to participate in the ARPG if you do not want to? Want to redesign your OC and not have to worry about getting some sort of item for it? By not being forced to stay involved in the ARPG, you can do that.
i found that species that have some sort of events or things that encourage group members to interact really helps me engage with the species more! if the group is too strict or has too many rules though, it can seem intimidating and maybe scare some people away. i guess you gotta find the right balance. but everyone likes different things, i'm sure there are those who really like the more strict rules/lore/etc! there are some species i really love, but the groups have basically died and my interest in drawing the characters for those species kinda died with it. (this is all just my personal opinion/experience)
i think the best course of action would be to create something you find is fun to manage as a group admin/leader, that way you can attract others that also like interacting with you/your species in the same way :3