If a new player is trying to make this rail a 2-way rail, this will help them immensely, even if they don't yet understand how rail signals work. I think the player even shouldn't start using rails without such understanding. A good tutorial is a must. There are good tutorials. Then, just a little ...

Depending on how train signals are placed, some rails become one-way rails. "A train in automatic mode will not drive on a track if it would pass a signal on the left side unless there is also a signal on the right side at that signal." -- from https://wiki.factorio.com/Tutorial:Train_sign...

I filled out the internal reason instead of the external one. In your case i did not approve it because you continued a discussion that ended 4 years ago. Ok, I see it now where it says "necro", which I'm guessing means "necroposting"? ...which I had to google. It's still really...

The player/chest/etc. inventory GUI is split up into a grid. Each slot in this grid has a gray border separating it from the other slots. When transferring items, clicking on the border between slots unexpectedly results in... no effect. This is weird and annoying, especially for a new player like m...

I just got a notification: "Post disapproved: Reason: The reported message does not fit into any other category, please use the further information field." What the heck does this even mean? This is not very new-user friendly. It says that the message does not fit into any other category. ...

We already have a "rotate" button... why not just add a "flip" button for all buildings?

It's easy to flip a sprite, just scale the x axis by -1.