Jukka Rajala is the person behind the E2 Jukka theme and the E2 Jukka theme dim settings.
If you have these themes set, this shows up in the source of your pages:
<meta name="author" content="Jukka Rajala">
<meta name="generated" content="by hand with GNU/Emacs">
<meta name="copyright" content="© 1999 Jukka Rajala">
Apparently he is on Everything with the username montana, by which I deduce this must be his webpage: http://www.dlc.fi/~montana/