1 Danbooru needs a spoiler mask.

2 Swear to the archons if they really let the shit-ass traveler 'slay' DEATH & she doesn't get back up from this it is Hoyo's worst fail of ALL time. This better be an Ei/Arlecchino moment where she's playable later on.

Danbooru has a blacklist feature. To enable it go to your Account > Settings. There is a blank field at the bottom for tags you do not want to see.

Pretty sure the spoiler tag is one of the two default entries on the blacklist.
That aside the issue here is that, if it is actually a spoiler, it hasn't been tagged as such.

Incineration said in comment #2633915:

Pretty sure the spoiler tag is one of the two default entries on the blacklist.

Nope, per help:blacklists, default blacklist is just scat, guro, and nsfw furries

marcymal said in comment #2633916:

Nope, per help:blacklists, default blacklist is just scat, guro, and nsfw furries

In that case it's changed since then, because I distinctly remember removing the spoiler tag and manually adding scat. Plus necrophilia when that one user discovered Hinghoi's alt account and the main page was just full of it.
Also, why is guro blacklisted by default but not necrophilia, that seems like a no brainer.
Well, point still stands that this isn't the site's failing.

Incineration said in comment #2633915:
That aside the issue here is that, if it is actually a spoiler, it hasn't been tagged as such.

Probably is, given commentary calls it a frame redraw.
Wait actually isn't there a tag for that ?