Thread:Feedback/Automatic child-hiding considered harmful/Werdna

The problem I'm mostly solving here is a performance problem. I did some testing with real threads, and found that there would be up to 1 000 posts in a single thread. This is unwieldly, both from a scrolling perspective and from a performance perspective.

What do you suggest as alternative solutions? Here are my ideas:
 * It's definitely possible to bump up the max depth before we start hiding.
 * It'd be easy to add an "expand all", which would (progressively, if necessary), load the content for a particular thread.