As much as it doesn't touch the file itself, it edits it startup =|
Someone asked this on Nexons forum and he got banned, but with NA Nexon they could just be too uncoordinated and it's fine.
That's totally different. That opens the launcher. This guide shows how to go straight to the log-in screen.
Do not post in topics (effectively bumping it up to the top of the list) where the last reply is more than 30 days old. This is known as "necro posting". You are more than welcome to create a new topic if your search results only turn up old threads. Some exceptions apply, like guides. If you feel like bumping an old thread instead of making one would be beneficial then ask a staff member through PMs.
This guide did not work for me as I don't store the file at the suggested location so copy and pasting the default location given by OP into my shortcut location didn't work. I find that if I just Right-Click the original Mabinogi client on my Desktop, and create a short cut, that worked as well. I clicked on the short cut I made and it took me straight to launcher w/o the website bullcrap.