In theory, modders asking to be compensated for their work is not that outlandish of an idea, however in practice there are a ton of problems that need to be solved when going down this rabbit hole:

• IP and ownership: Is the mod really 100% originally created by the seller?
• Compatibility: The game is going to be recieving big updates, is there a garantuee that the mod will remain compatible, or be updated as well?
• Dependencies: Does the mod require other mods? Are the creators of that mod OK with their work being used to make money by others? What if the required mod breaks or becomes unavailable?
• Load order: Anyone who’s modded Skyrim or Fallout before knows how fickle mods can be, often requiring specific configs and tweaks to the load order. Is Bethesda going to offer tools for that alongside their store?
• Quality Assurance: Am I even getting my money’s worth? Is there a refund policy?

All of these proved to be major issues when they tried a paid mod store for Skyrim. Stolen mods, a fishing mod that required an animation framework mod who’s creater demanded the fishing mod be taken down, mods that had major incompatibilities with other popular mods, and bought mods just inserting themselves wherever they felt like in the load order.

If Bethesda wanted to create an official mod store, it would need to be carefully curated, with contracts with the modders requiring them to keep their mods updated, and seriously upgraded tools for configuring purchased mods. Honestly, I just don’t quite see it happening.