It's not just flux, you can do the same with other models including Stable Diffusion.
These two reddit threads [1][2] explore this convention a bit.
DSC_0001-9999.JPG - Nikon Default
DSCF0001-9999.JPG - Fujifilm Default
IMG_0001-9999.JPG - Generic Image
P0001-9999.JPG - Panasonic Default
CIMG0001-9999.JPG - Casio Default
PICT0001-9999.JPG - Sony Default
Photo_0001-9999.JPG - Android Photo
VID_0001-9999.mp4 - Generic Video
Edit: Also created a version for 3D Software Filenames (all of them tested, only a few had some effects)
Autodesk Filmbox (FBX): my_model0001-9999.fbx
Stereolithography (STL): Model0001-9999.stl
3ds Max: 3ds_Scene0001-9999.max
Cinema 4D: Project0001-9999.c4d
Maya (ASCII): Animation0001-9999.ma
SketchUp: SketchUp0001-9999.skp
I’m not sure what saar means here but these images are fairly standard and a drop in the bucket compared to the hideous number of porn fine tunes published daily on civit ai if that’s what you’re looking for
These two reddit threads [1][2] explore this convention a bit.
[1]: https://www.reddit.com/r/StableDiffusion/comments/1fxkt3p/co...[2]: https://www.reddit.com/r/StableDiffusion/comments/1fxdm1n/i_...