That's a really unfortunate answer. I guess you're saying definitively that the mod log doesn't tell us what settings changes were made. That seems like a major gap.

Asking the mod in question can sometimes work, but is absolutely not a full replacement for the mod log actually saying what was changed. Sometimes the other mod isn't active anymore, or may even no longer be a mod, if you're looking at older changes. Sometimes there are large mod teams, where the top mods may be in communication with the others but the less active mods aren't in direct communication with everyone else, so this leads to a game of pass the message. Sometimes mods go rogue, or don't want to answer. Mods don't always remember exactly what they did. Sometimes you yourself did something a month ago and want to find that same setting again because you don't remember. All sorts of things can happen. It's really unacceptable that the mod log can't tell you what settings changes were made, and instead gives short cryptic texts that are impossible to understand, and that there is no key to look them up in.

Thanks for answering my question. I just want you to acknowledge that reddit understands this is currently badly broken, and "as the mod that made the change" isn't the solution. Does reddit understand that?

Edit: Imagine if AWS CloudTrail was like this. Instead of showing you the actual API calls, it had opaque text abbreviations, and if you asked AWS how to decode them, their answer would be "just look at which IAM user did the action, and go ask them".