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.

An example:

<http://n2.nabble.com/Two-new-unofficial-channels---caldav-interop-and---caldav-google-td2015839.html> 
— looks good

<http://lists.osafoundation.org/pipermail/chandler-dev/2008-December/010469.html>
<http://lists.osafoundation.org/archives/chandler-dev/200812.mbox/[e-mail]%3e>
<http://thread.gmane.org/gmane.org.osaf.devel/9192>
<http://osafoundation.markmail.org/message/kjgwebdmufvdsqbf?q=list:org%2Eosafoundation%2Echandler-dev&page=1>
— all lack the clarify of the HTML Nabble original.

I guess that there is no universally pleasing solution to this. Just sharing my observation.