Yes, this is true @Deleted User It never hurts to keep something there. Here is a question for you though. You made a species. You put time, effort, creativity, the things eery single person who has eer made a species puts into it. Then it flops. Bad hit for moral. The site approved the asset. It's now not being used, which means it's room for expansion is limited heavily, expecially on sites that require RP to expand, rather than ust time itself.
Say you spent a year, two years, 5 years, or een a decade trying to ge the species, nothing happens, and you eventually leave becase your moral was shot. The site now has lost a player who wants to create things, which is a asset, ad has a species that is lacking a creator.
Sure, someone can come and take that species over in the future, and maybe it'll hit it off then. Right place right time, maybe they have an innovative idea, what have you.
Or it could just sit there as an unused asset becuase it doesn't have any movement, or ay presence in the setting as a whole to really be relevent. You could keep on as if they don't eve exist, which is what may RP sites do because writers write about what they know, and if they dont know about something then they won't write about it.
There is no right or wrong answer here