Thats all fine and dandy, but doesnt warrant screaming "DO NOT USE THIS MOD !!!! I REPEAT DO NOT USE !!!".Yes you can add two wallnuts, but your savegame Will be corrupted. For some like me that is an issue. True it has no uncircumventable gameplay effect, but it has a deep effect. And will show up under https://mouseypounds.github.io/stardew-checkup/. If you did not have said Issue you either allready collected them beforehand or not yet and will run into the issue. I just posted here as a warning since some, like me, might realise this too late and thus feel the need to remake the game ^^.
The corruption of your save file has pretty much 0 impact on your game. You can achieve 100% perfection and unlock everything. If a site doesnt count it, what does it matter? Not like its hard to check ingame. I mean whatever floats your boat if you have a problem with it, not arguing against that, but the way you express it is kinda rude imo.
Especially since every mod can corrupt your files. Mods in itself are labeled as "Use on your own risk".