I agree as I am one such case. I created an account like a year and a half ago and got so overwhelmed with it I just ignored it. Even the explainer I found was just too much. Finally a couple weeks ago I remembered it given all the Reddit is compromised stuff. I found my login info. I also happened to have had a gummy so I was in the right high mindset to just go down a rabbithole and finally figured it out. I still don't really understand how Lemmy interacts with like Mastodon or Pixelfed etc.