@Sudsrung0
I agree that some hosts are a bit lax about the quality of photos or the light in which they're shot.
But there's also a negative effect of having photos that are "too good". If your photos look better than your place looks in real life, then you can expect guests to be disappointed and then you'll receive disappointing reviews.
Underpromise, overdeliver.
There is a strategy employed by seasoned estate agents when selling houses. It works for STRs too. (I learned this from an estate agent).
Surely your photos need to look attractive, but it's always wise to place a few strategic imperfections. e.g., don't necessarily shoot them in the perfect light. Leave a little clutter (not too much). Avoid making the space look bigger than it is... etc. And tone down the photo colour intensity ...just slightly.
Also, don't photograph every attractive thing in the house. Leave a few pleasant surprises for them to discover on arrival. Nice artworks, amenities, etc.
Then, always make sure the place is organised, uncluttered, and cleaned to perfection when guests arrive. And that it looks bigger and more spacious in real life. And even the colours are more vibrant.
The impact isn't conscious at all... all they sense is that it "feels better" than they expected (and that sets the tone for their entire stay). It's a subtle thing, but you'd be surprised what a difference it can make.
But you're correct.. really bad photos will just drive them elsewhere from the beginning. They'll never see what it really looks like.