it's easy. there's probably something like a channel in Discord where people post bugs they find. see someone complain about a modded game - take away their permission to write in that channel. because if they can't tell a difference between an error that comes from a mod and an error that comes from a game they can't tell you anything useful about errors they find anyway
I get it, but it still seems like backwards reasoning to me.
if there is an official channel for reporting actual bugs in the game, with controlled access, and it gets clogged up with people playing with a mod so badly that it deserves a countermove, I'd say there's a major communication problem
but if the game instead of crashing would display a huge "idiot, stop using MODs!!!" sign wouldn't the whole thing be a moment more productive? at that point they wouldn't go asking for anything., maybe they would play without Mods and bring in useful reports in case
normally the integrity seals on the devices are clearly visible, often reported, they are not hidden intentionally, because for you to go and bring a tampered device is a waste of time anyway, useless for both parties
but you want to put the taste of personally kicking someone out of your treehouse?