Here's a hypothetical:

Let's say one has stockpiled one's work over the years and has, say, a dozen short stories and twice as many flash pieces on hand that are of "polished as can be, one's fullest effort, tip toppiest shelf, good chance of getting published" quality. We're talking years of effort.

Now, let's say one wants to unleash everything on the world at once.

What major problems, if any, would the writer in this situation face?