Andrew Cates knows What is TCl as he used TCl a lot on alta vista customisations and is happy to join The Tcler's Wiki, and be one of the Welcome Visitors, without too much Help or having to Search too far. Gosh this is starting to read like Wikipedia.
He has a homepage at [L1 ] and his email is his christian name at his homepage.
He knows about how Wikis work, How do Wiki Categories work and so on from other WIkis e.g. [L2 ] Meatball and [L3 ] Ward's Wiki, which are good places to look if you cannot find him.