The first thing I did was edit my profile, but I found that it doesn't give me enough feedback about errors. I tried changing everything all at once(of course) and then got greeted with the previous defaults. It took some trial and error to figure out that it wasn't accepting the RGBA PNG I had picked out for a profile picture. I'd also like a direct link to the markdown formatting docs, or even just a quick summary, on the profile editing screen.
My profile finished, I proceeded to look in my Dropbox folder. The README is not formatted for Windows Notepad and appears as one long line of text. I switched to NP++ and continued to write a "hello.txt" containing a link and an image. It shows up, so I go back and edit the README, too. Everything is in order, but what is this "cloud+arrow" button? Inspecting it reveals it's publishing, but I don't feel confident about whether I've published hello.txt until I log out and check.
I might continue using this. Some last thoughts:
I will probably want options to organize posts. There isn't enough documentation to know if I already have them.
I found myself wondering if there was a shortcut for marking up the image that would let me point to a folder inside Dropbox without tabbing out to find the public link.
I may not want the displayed title of README to be README.