Once again expressing my opinion that this is the worst anti feature of the site. Threads are like commenting in the void because most people are not going to be looking for replies to comments they made days or weeks ago. I see the true datestamp of the comment I replied upon upthread was not 3 hours ago, but 3 days ago.
The fact that they change the timestamp is also very stupid (yes you can hover and still return the datestamp, but this is by definition a dark pattern). These posts should preserve the timestamp vs masking it and even should be flagged as [Second Chance] in the title imo.