Do I really have to rationalize basic respect for people giving you something? Here's one outcome: they become disillusioned and frustrated and, having learned nothing from the experience, cease producing the valuable thing you liked enough to use in ways they asked you not to. Bad outcomes for all.
The actually valuable thing here is the mind and effort of the person who created the mod. You cannot steal that, but you can spoil its output.
So, let me give you a hypothetical. Are you old enough to have watched and enjoyed the movie Braveheart? If not, lets pretend you did. Lets pretend you absolutely loved the movie. Mel Gibson both directed and starred in the movie. Now, I do quite like the movie, it is very entertaining. I respect the work for what it is, and respect the effort that was put into making it. Mel Gibson, it has come to light, is extremely anti-Semitic. I have zero respect for the person. How do you cope with this situation? Do you force yourself to hate the movie because it was produced by someone you dislike? Do you respect the person because you like the movie? If you do, then do you take on other things which they advocate for? If not, then are you actually respecting them as a person? Respect for a person is *entirely* separate from respect for a work.
Respect for a person gets me to do what you want me to do, respect for your work does not. The idea of a chef serving me a steak and insisting I can never place ketchup on it is absurd. I could make a thousand of these analogies. The fact of the matter is that simply because they have given me the steak for free does not mean that I should not be allowed to put ketchup on it. If they are so petty as to quit modding simply because I am enjoying their steak with ketchup, then I will be saddened by that decision, but I will not regret adding the ketchup.
EDIT: "Actually I worded my post carefully. I said your statements sound like those things. "
This is a technicality, and only a technicality. If you truly did carefully word things to be that way then you should have reconsidered saying it at all.