Comment by dredmorbius

That's precisely the hack I mentioned a few comments back on ... some subreddit somewhere.

Essentially, the left-hand indent zones are collapse regions for the post topping that level of the hierarcy. It's sheer brilliance.

Can't find the sub, though I've looked for it. I thought it was a science one. Maybe politics -- somewhere I don't often go. Hrm, no, not there either.