Why is the blacklist now actively hiding an image directly while on the image page? As someone's who's tagging a lot of posts this is absolutely terrible, because often times I would search for an artist, disable specific tags on my blacklist so more posts I'm interested in tagging show up (eg "rating:s") and then open them in new tabs. On the new tab the images are then STILL hidden making it impossible to see the image and tag it, either having to disable my ENTIRE blacklist with the "Disable all filters" button (which isn't what I want or need) and reloading the images again or clicking the specific tags I disabled before again.

Yet another thing making the life of tagger's like myself unnecessarily more difficult.

Yeah, someone already raised this, though it's good to have it in its own topic.
Because you probably do want blacklist to kick in for Random, I concluded that the server would have to add an extra piece of data saying whether the blacklist should be ignored (as in the main cases: clicking on something from post/index, a user avatar, or embedded thumbnail)

It's kind of ambiguous whether it would be appropriate or not for the next/prev actions to also suspend the blacklist. Maybe there could be a checkbox on the next/prev bar to control whether the next image is loaded with blacklist suppressed.

There's also probably a little automatic logic that could be applied, although we should be cautious with that; for example, when you click on a pool, see that everything is blacklisted, toggle off a blacklist item and then click on one of the thumbnails, it seems reasonable to infer that the post thus loaded should have the blacklist suppressed.