Well... hey! Nice to see you're back! It's always pretty great to see new users come back, so welcome back!
Anyway, greetings aside, introductions to the site (or reintroductions) are to the best of my knowledge, not allowed in meta. Meta is reserved just for site discussion, so your post doesn't fit in here. I'd advise saying hi and reintroducing yourself in chat, or if you have certain people you want to say hi to, post on their wall.
And to answer your question, accounts can't be deleted at all. If your account was deleted, the site would lose all the activity you had on here, and that wouldn't be great for it. Instead, ask one of the mods to block your old account, and tell them your situation. I guess you did that here, though, so that's out of the way!
Anyway, nice to see you back here, hope you have a good time!
