Randall, Google Plus is waiting for you and here's why:

• Your Tweets that you consider throwaway during chronic insomnia are not disposable at all, but they're recycled a lot. You're a great writer, you know it, we know it. 
• There is no law that says you have to post things longer than 140 characters, but you'll never be stopped by that limit.
• There's no law that says you have to post a photo, but should you care to, you can post one or more
• There's no law that says you must post links, but you can post them and they will usually be  presented in an interesting inline fashion at the bottom of your post.
• Posts on G+ can be edited and deleted forever, should you care to. Same with comments.
• Public posts are indexed in Google's search results. Don't want that? You have full control of it.
• In fact, you can aim your posts at anyone you like, from the full public + future public who sees search results to one person.
• There's plenty of noise on G+, but just like on Twitter, you don't circle (follow) noisy people, you won't see them.
• Yes it takes some work and time to get it working right. Making wine doesn't? Raising kids? The Time Crossword Puzzle? Nothing worth doing does it self.
• Hangouts. I won't get into this here. Just Hangouts.
• Serious discussion? It's up to you, once you've made your environment, you can be serious or just a desperate insomniac at will.

What's in it for you?

Let's face it, of those 
356,663 followers
you have, how many are interacting with you? At night when you can sleep? Sturgeon's law, my friend.