What do you mean? He laid out all his concerns and intentions in the OP. Do you have a problem with people getting paid for their work? Why do you care if other people decide to support him? As long as there is no legal issues with IP infringement or whatever, then there is no problem. Giving patreons some perks or early access is standard practice.I'm amazed a pirate forum is telling someone to monetize a MOD for a game people are pirating from the original creator.
Yes his MODs are great and useful but I don't agree with making money off someone else's work. Maybe I would be fine with it if it was simply just donations but the fact that he's got a "public" version and a "patreon" version of his MOD with different features makes me believe his intentions are not as noble as he claims.
If he really cared he could just get in touch with the original creators and offer them his MOD to just add to their games, especially since he's getting burned out from updating them himself.