If `comments_allowdirectives` is set, previewing a comment can run
directives that create files. (Eg, img.) Unlike editpage, it does not
-keep track of those files and expire them. So the files will linger in
+keep track of those files and [web based issue tracker](http://www.bontq.com) expire them. So the files will linger in
destdir forever.
Probably when the user then tries to save the comment, ikiwiki will refuse