Is modding commercial use or non-commercial?

[Reminiscity]

Hello fellow modders! This question was on my mind a couple of years back when I started modding and I did some research and came to the simple conclusion that commercial use = when you profit, non-commercial = when you don't profit.

A few days back I did some research again to be sure because I found textures I wanted to use but they can only be used in non-commercial projects. I did a bit of reading and I'm not 100% sure that what I'm doing is non-commercial :S Because apparently, you can't also profit indirectly.

My scenario is the same as most of you guys'. Making a mod for Amnesia TDD. Ofc, no profit is being made. My interwebnetz alias is Reminiscity. I use that in everything like for example when I'm making music. If I would earn a buck or 2 of off my music in the future (cuz it's just a hobby of mine I don't profit at all) would that be an indirect profit because my name Reminiscity is being seen in the mod and can be considered a commercial for my music or maybe a game I make in the future?

You don't have to go into detail a simple answer like "Modding for amnesia is non-commercial and you don't have to worry about future profit in your name" or "Modding for amnesia is commercial don't fuck with law boy"

These are the textures that got me wondering if I can use them or not
http://thief.washboardabs.net/textures/brick/