I had forgotten about SDF but seeing SDF instance on Lemmy caught my attention. I used to use SDF for a while about 10 years ago and now it would be interesting to see if I have left anything interesting there.
I found my notes from ten years ago so I know what my username was. I don't remember my password though. I tried to log in but to no avail. Is there any way to know whether my account still exists? Do accounts get removed if they're not used for long periods of time?
You know what, I just checked, and account expiry is covered in the FAQ.
It might well be expired.
I second emailing membership, they might be able to help you. Or if you trust one of us, we might be able to check, as well.