- not every time. Look at WoW and tell me that raiding Mythic without mods is a valid oprion. Or tell me that the game wasn’t twisted a lot because of developers compensating for existence of mods.
- it is enough that the damage is caused to someone else other than me. It’s not like I care about THEM having a bad experience - rather, I care that any amount of players having bad experience poorly reflects on the developer, a game as a whole and possible sequel or other projects of that studio.
- Mod support makes the developer lazy. Because people end up doing their job for them.
Mod support CAN be good. In a sandbox game like Minecraft.
But any serious game only loses out by allowing mods.