After much pondering, I activated an app to delete my tweets.
For the record, there's nothing amongst my backlog of tweets that I wouldn't have said at the time of tweeting. I decided that the world didn't need a random collection of my 140/280 character thoughts.
I was my a tweeter of record. I didn't maintain threads. My conversations were sparse and probably vastly improved by my absence.
I will continue to tweet, but my tweets will only have a three-month lifespan and then they will vanish into the ether (and on to a collection of cache websites).
But my tweets will deletes.