from the linked github thread:

Your project is in violation of the AGPL, and you have stated this is intentional and you have no plans to open source it. This is breaking the law, and as such I've began to help you with the first steps of re-open sourcing the plugin.

the project author (who gets paid for violating the AGPL via patreon) responds like a mediocre crypto grifter and insists their violation of the law be debated on the discord they control (where their shitty community can shout down the reporter):

While keeping code private doesn't guarantee security, it does make it harder for bad actors to keep up with changes. You are welcome to debate this matter in the MakePlace discord: https://discord.com/invite/YuvcPzCuhq If you are able to convince the MakePlace community that keeping the code open-source is better, I will respect the wishes of the community.

aaaand the smackdown:

Respectfully, I won't attempt to "debate" or "convince" anyone; I'm leaving this pull request and my fork here for others to see and use. It is not a matter of "better"; you are violating a software license and the law. It does not "make it harder" for anyone; Harmony hooking exists, IL modification exists, you can modify plugins from other plugins.