This is about the Sorcerers thread
And yes, the HTML page says
<p>18. <a rel="nofollow" href="http://www.wikitree.com/wiki/Corssen-10" target="_blank">www.wikitree.com/wiki/Corsen-10</a> Christening</p>
so you click on Corsen-10 and go to Corssen-10.
It's a feature of the G2G compose window. If you paste in a URL, it recognizes it and stores it as a link, coloured blue. Then if you edit it, it only changes the visible text, it doesn't change the link. To change the link, you have to use the "chain" icon (below Font). Or just delete it and do it again.
You or a Leader can edit your post to fix it (and the other one).