To change single post quote links inside full thread views from separate single post views to local scroll jumps within the thread, while leaving other links untouched:
Array.from (document.getElementsByTagName ("a")).filter (e => e.hasAttribute ("href")).forEach (e => {
h = e.getAttribute ("href")
s = h.replace (/^\/([^\/]+)\/(\d+)\/(\d+)$/, "/$1/$2#t$2p$3")
if (h != s) { e.setAttribute ("href", s); }
})The operation is idempotent. To get the previous behavior back reload the thread.