This is a really good idea. I often think about publishing blogs but then I wonder if I am so caught up in it, that I think it's clear but no one else does. Food for thought and good that some tools are available on this, thanks!
That is an interesting idea. I never have accountability buddy for copy-writing, but I use LUNADIO to have accountability on my project and that helped a lot.
you can try https://myfocusspace.com/ as well, though it will help you be accountable to the process of writing, you can create connections with other copywriters who are going to be matched with you.