I went to Support and eventually to My Stuff as I was going to review some conversations I had with tech support, but nothing is there. Do they disappear after a time?
Jeremy, I'm going to say that the answer is a (disappointed) yes.
I just checked and I see only one of my support questions on that page.
I know that I've submitted at least 4 over the past few years :-(
I've found my old questions from '07. There's the "my account - my support" questions & there's the "knowledge base - my stuff" questions. appears both don't overlap.