protip: you can search https://archive.org and https://archive.ph with wildcards for all toots under a fedi user, and usually the archived threads are exactly the sketchy ones you're looking for
second protip: archive.ph doesn't execute the javascript so mastodon CW's don't work. You can use a custom CSS snippet with Stylus to view them anyways though! (code in next toot)
code
div[data-spoiler="folded"] div {
display: block !important;
}