The last couple of times I used it the blickifier failed for me when sharing a Mudcat thread.

pasting
http://mudcat.org/thread.cfm?threadid=158835
created (plus the arrow bracket things)

a href="/mudcat.org/thread.cfm?threadid=158835">/mudcat.org/thread.cfm?threadid=158835

> 404
https://mudcat.org/mudcat.org/thread.cfm?threadid=158835

After copying & pasting the link it now seems to need the addition of
http:/
after
href="

/mudcat.org/thread.cfm?threadid=158835

~~~~~~~~~
or I might have been unlucky
or missing something?