Tom Reichner wrote in post #18829471
The problem with the five things that you mention here are that they all look to other people for validation.
The way I see it is that if photographers or any other artists look to others for validation, then the world of art is in a sad state.
I think you have a good point, and the OP question is possibly impossible to answer.
One person can validate themselves. Let's say a 5th grader looks at a pottery for sale and thinks to themselves "hey, I've made something that good - even better" - then decides to sell or display their own piece, they've just validated themselves. Especially if they are right, according to what many others may think later on.
In a way, I can equate the OP question to tree discovery. In the USA, American Forests maintains a big tree registry, and various big tree hunters nominate their finds. Then American Forests has it measured, and if it's big enough, they validate it as a new champion.
In our case, we got tired of loose lips leaking our tree discoveries, and we also know how to measure accurately. There are at least 4 species of trees we discovered that we chose not to nominate, be we confidently validate them with our own stamp of approval. Coast redwood being one. This means that American Forest's listing for coast redwood is the fake champion now, and ours is the real champion, but off any public record. If we nominated, there's no question it would make their list. But we shut the valve and chose not to seek their stamp of approval anymore.