Unfortunately, some aspiring writers seem to confuse doubts about writing with doubts about how to organize, create, or fix world building aspects of their story. I've come across some questions which are closed for being off topic and which I'd like to have voted to migrate instead.
I believe it makes sense to create a migration path to Worldbuilding. As it was mentioned in a meta question when Worldbuilding was in its early stages, it is a sister site to Writing.
It would be interesting to check but, from my experience, most off-topic questions seem to veer towards language use (hence the ELU migration option) and to world building aspects.
I seem to remember having read (can't recall where and couldn't find it) that Beta sites can't have migration paths but, since there's one to ELU, I am hoping this idea can be discussed and, hopefully, considered worthwhile to implement.