I made a decision a couple days ago. I'm going to stop using all lowercase text in my writing (except for here because the style has already been established and I don't care to change it).
Why change? It's getting old, and it is harder for people to read. I'll still use it occasionally, when it is warranted, but for the most part, I'll be using capital letters again, just like most of you.
So, if you receive a piece of personal correspondence from me that's written in lowercase, feel free to kick my ass.