I think there's a difference between a post that's a picture with no explanation or whatever to it, and one that's a picture with it's backstory.
The former is only worth a 'like' at best, the latter may invite a more elaborate interaction.
This seems a bit slanted towards your own way of working & perceptions. An image can be self-sufficient just as a painting or a sculpture can, and have a life purely in the realm of imagery that is self-sufficient,
and without a word-based narrative. If I look at and assess a photo, at the core of my judgement of it is how it swings purely as an image. This isn't necessarily technical, as in blown highlights (aaargh!) or some other clumsiness, because an artistic truth can sometimes (even if it struggles), eclipse such concerns. I'm looking for the message and any meaning. Which is a composite thing, & can encompass a huge range of hybrid possibilities.
When is a photograph documentary? All photographs are - they are documentary of the processes used to make them, along with how they may reveal the mindset of their perpetrator and probably other stuff as well.
So let's be loose - but have some notion, in judging images, of purpose & integrity, and in some cases more than others, fun! And not just some partisan idea of 'I did this, therefore it is good', or that I used this camera or that one, likewise. That's just casual tokenism in the end.
Another pitfall is that a mastery of
aesthetics in photography (as in all arts) doesn't necessarily lead to work of greater meaning, but often the opposite.
What an image 'says' may be in effect inherent in it but is also the product of a dialogue - whether between the image & its maker, between the image & its viewer, or between the maker & the viewer, but in all of these the image can be the conduit of some meaningful expression. To the maker, it's a kind of mirror. To a viewer, it can function as a an echo of themselves, or as a new discovery - or a hybrid of those.
It's a fluid field. But there are certain truths to aim for not just in the inherent nature of any given image, but also how it may be described. Yes, words can have a place in imaging, but often as just a commentary or afterthought rather than something that the image depends on. If an image needs a tag, does that make it a better image?
Each of us has a cultural consciousness, and the power of self-reflection.
Blimey, you made a stimulating post there, Dave.