Some types of HTML compositions that are good in Nabble may be poorly represented elsewhere.
Posted by Graham Perrin on Dec 27, 2008; 1:47pm URL: https://support.nabble.com/Angle-bracket-enclosed-irc-room-URLs-do-not-appear-as-hyper-links-tp1676873p2015886.html
An obvious workaround: check the box for
[√] Message in HTML Format
However, depending on the nature of an underlying list, and depending on the author's HTML, representations of the (Nabble) original may appear strange.