
for some odd reason, Factorio doesn't use the "tip" or left side of the Cursor to tell where you are clicking. Instead it uses the Middle of the Cursor.
How the "Hitbox" of the cursor should be:

How it is in Factorio:

which as you can see makes working with any kind of naming or number writting very annoying as you unintentionally click 1 digit off to the right.
it's a very minor but very annoying thing.