That is completely reasonable and normal though. This way he can focus on actual bugs that are reported which are caused by the game itself, and not by some external mod or guide that modifies the base game and may cause extra crashes and errors which are totally unrelated to the actual code of the game

The trap is put into the game so he and the moderators immediately distinguish between actual bugs and dismiss the reports of people who have an unofficial mod in place as he's not responsible for those