"Real" modding still allowed?

Have there been any official statements or comments regarding Flashbulb's stance on "DLL-modding" i.e. modding via code-patching using e.g. BepInEx?

Found some discussion on discord saying they _used to be_ cool with it, but some kids ruined it by kicking hosts from their own servers, crashing opponents' clients etc. through malicious usage. Discussion of "DLL-modding", as they dubbed it, is now completely prohibited on the official discord, since it's technically breaking the EULA.

Is there any indication I'd be met with resistance if I were to make C# mods for personal offline-use? What if I were to share them on GitHub? Have there been cases of Flashbulb asking for such things to be taken down? Hope it's okay to even ask these questions....