Why are some posts empty? I get the title of the thread and no content frequently... maybe it's related to some of the schema issues I've seen around boards?

Here's a sample thread.

Are the posts recent or older ones? I was redesigning boards the other day and while I can not remember by 100%, I think I did not delete any board. What I did was renaming some of the boards (but not posts) to better names to fit the new structure. So I guess so far should the most of the posts be still accessible.

Looks more like some kind of bug with the format (tikiwiki, html etc.) - they might have been posted in a format that is now disabled.

It could be a format thing, not sure, the title of the post is there but the body is missing.... I'll try to note other instances to see if they are beyond a certain age etc.