デフォルト投稿設定のなぜ？

[Bas (Bas van Leeuwen)]

@IanManning

is this to present instant messenger style “Yeah” responses?

This is exactly it!

Why bother with the minimum character requirement for replies?

Generally because it puts a barrier in front of annoying behavior. Is it an insurmountable barrier? No. But why allow annoying behavior when you can discourage it? That said it’s a forum level setting. Don’t like it, start a forum, change the setting to zero. voila.