Why you need a EULA on a mod for a Mega Man fan-game?

No idea what your talking about, didn't this issue got resolved already? As explained before, the READ-ME was old. However, if what you want is a more in-dept explanation, there is a real reason as to why it was so enforced. Back in the day, [tspg] rules were kinda weak and most of the time content would get stolen. Hell, we didn't even had a player user name tracker like today meaning peoples could ghost with each other's nick names. One of the best examples of this is the Complex Doom community where the amount of assets stolen and no credits given is astronomical.

And yes, as a content creator for this game and community i don't want my content stolen, and i am 100% sure that literally any mod maker can agree with me on that, working thousands of hours long so your content gets stolen with no credits and respect to the original creator is bad. If anyone wants help with your particular mod, just contact me directly and we can make new content for you, but never give what is already inside our project, we don't want trouble with that.