Back in my day, one-way used to be the norm. Two-way is a more recent thing on some newer platforms, and I’m of the opinion that it does more harm than good. Especially in a public forum like this, it can be abused by bad actors as a way of hiding misinformation from those that would push back against it.

I know this because when Reddit changed their block system from one-way to two-way, that’s exactly how it ended up getting abused.