If someone writes a post, and includes a link in it...to say
www.yahoo.com
then edits the post, and changes the link to say
www.ebay.com
seems that anonymizer doesn't understand that the link was edited (changed), and when the hyperlink is clicked, keeps taking you to the first hyperlink, that is yahoo.
Try it, see if what I say is true.
(Mind you, it may have something to do with the fact that I am also running
External Link Titles, retrieve descriptive titles for URLs
https://vborg.vbsupport.ru/showthread.php?t=146679
but I doubt it.)