Yes.
There's no one set limit to backlog. 10, 20, 50, 100. Whatever works best for you until you're ready to start posting them.
Posting twice is a good idea if you have large backlog. On the other hand, a short backlog makes it easier to catch and fix any plot holes you might miss.
Hope...
I'll read other stories for 'Inspiration' instead of writing whatever previous ideas were 'inspired' by stories I read for inspiration.
It's part of why nothing's posted yet.