Carol, you can edit the old stuff now. Or take it down. It is technically still stored in the blockchain after doing that but not easily accessible. Nice for removing the "real" stuff and being able to have better shot at reprintings (or to places that don't consider blogged published, sadly few and far between).
But the best thing if you want to grow as a writer is to do the freewriting exercise to completion, not sharing them publicly, and end up with some real solid stories out of all of it that you can actually do something real with.
All this does is build a steem account worth barely anything....
RE: Benevolent Dragons (or not); RhNegative Blood; Epigenetics; Day 612: 5 Minute Freewrite