> IIRC there was a time when Confluence axed their markup, and inevitably a table or a template would get completely screwed, and there was nothing you could do but recreate it. TERRIBLE design.

There was. I was using Confluence at the time, and it broke a lot of things. There was a wonderful filed bug at the time with a lot of angry people on it, where they promised to bring the old mechanism back as an option, and they never did. That told me everything I needed to know about Atlassian.