A comment from the reddit link which makes their alternate seem appropriate (I haven't used kiCad since around 2010, so have no opinion either way):
> What KiCad does have is "push and shove" routing, which is really nice. As you're trying to manually route a new trace, it will push existing traces out of the way as you incrementally route the new one. This is a huge time saver as you manually route your board.