There aren't enough.
I find myself more and more disappointed in newer writer(s) at large for the primary reason that more and more of our attention is being diverted away from writing, craft, and story.
We spend an inordinate amount of time trying to fix the world via social media when our primary job is to fix it through story. We spend far too much time focused on selling rather than writing. When I sit on panels new writers inevitably want to know "How do I get Published?" and what my opinions are on traditional publishing.
Last night I mentioned I did not write EXILE to sell, but to learn.
Someone came up to me afterward and told me how interesting they found that concept: writing a book to learn. (Which left me pleased and a little nonplussed; I learn from every book.)
Last night we had a question: How do you finish your stories?
This morning someone emailed me with some questions about writing. The actual writing, starting books, etc, not about publishing.
Honestly, I think with all the value of having so many options to publish, many newer writers aren't spending nearly enough time on craft. The process of creating stories should consume you, eat you up and spit you back out for a number of years before you start even worrying about selling them. I don't mean you can't submit. Sure. Set up a basic round-robin of magazines in a spreadsheet and submit your short stories to all of them. But that should be 10-20% of your time if you've been writing less than, say, five years. Get it down to a system and it only has to be.
I write an RPG with a friend. I love it because it's as pure as story can get for me. No audience, ever, but us. No pressure. Just fun and learning.
One thing I adore about BookSworn and another Facebook group I'm on is that we spend a ton of time talking about story and craft. There's some market stuff, but we have fascinating conversations that revolve around Story. It strikes me that for most successful writers, crafting great stories is still their primary driver and concern.