TL;DR of live letter

[Kaurie]

The issue isn't about how MMO addons generally work. It's about how console addons (regardless of MMO or not) work.

Typically with MMO plugins, the game developer adds in support for a scripting system. (LUA is the one I'm familiar with, as it's what LOTRO uses. I've written a couple plugins for that game and used several others.) Users can then use that scripting language to interact with whichever game features the developer gave that scripting system access to. Within the limitations of that access, they can develop whatever they like, install it on their system, share it with other players to install on their systems, etc.

That last part is what doesn't work with consoles. You can't write a script (or get one from someone else) and install it on your console. To install a FFXIV addon onto a console, Square Enix would first have to put that addon up for sale on the PlayStation Store. (The price can be free, but it still uses the Store interface.) Then players would be able to download that add-on from the Store and install it into their game.

SE isn't going to put in a system that would require them to be a middleman in the release of each individual plugin (and each successive version of each plugin, as many of them get modified frequently). On PCs, they wouldn't have to, but to get them onto consoles, they would.

Is it possible to have an in-game addon creator where you can code/download/activate the addons in-game? I'm not a coder, so just wondering.

[Ashkendor]

Is it possible to have an in-game addon creator where you can code/download/activate the addons in-game? I'm not a coder, so just wondering.

Even if it was, I'm not sure Sony would be on board for this because it would completely bypass the Playstation Store.

Sony likes to have control over what DLC their users can access.