For example https://e621.net/posts/2241560 was deleted due to "whippytail" being on "avoid posting". You can see it shows nine (9) tags for "Nazboo".
Going to https://e621.net/posts?tags=nazboo at present however only shows eight (8)
I had attempted to upload this image not knowing that it was there, wasting time filling out the tags and all that.
If maybe we had some kind of indicator that an image was deleted by having it show up...
Like even if it was just a circle with a bar through it? That way I could at least click it and see the tags and the artist name could've tipped me off that someone had uploaded it and it was taken down and not to bother.
Another option which IMO seems fair might be to do something super-low-res as a thumbnail with an X through it, showing it was deleted, but still having enough detail to be sort of recognizable so people could avoid it on sight?