Links in replies aren't clickable.
I've noticed that when I get a reply in my inbox, the links aren't clickable meaning I can't press enter on them to activate them and must copy them and paste them to the address bar.
I also think there should be a website section in the forum list of places to post.
I'm not sure what to tell you.
I subscribed to several threads yesterday evening. I woke this morning to find a number of email alerts in my inbox, all of which had links present and working as expected. Tested with Mail and Outlook on iOs, and Mail and Mailmate on Mac.
Which mail client are you using and seeing this behaviour?
If you would forward one of the emails you have received to firstname.lastname@example.org, I'll take a look and see if anything obvious jumps out.
With IOS the link shows up with no problems, but using thunderbird they're just non clicable links.