From time to time, I find myself going back to papers I wrote 8 or 10 or 15 years ago and finding them, if not outstanding, at least publishable; if only because I'm reading some other papers that deal with the same problem and were published (not by me) several years after that.
What happened to them? Who knows. Maybe they were sent to a journal and they flunked, and then sources were lost in a hard disk crash, along with the experiments that feed them, which eventually condemned them to oblivion. If I remember correctly, that was the case of a paper
I wrote around 10 years ago about how to use (or not) non-coding regions of chromosomes in evolution. No sources, no experiment, so the only way out now is to reproduce research all over again. Which is a bore.
It all boils down to a piece of advice to my younger self: nothing is gained with a paper going down the drain. Publish it. Anywhere. If it flunks over and over again, upload it to
ArXiV and be done with it. Keep it backed up somewhere, because ten years on, you will be be sorry for not having published it.