Sign In to the wiki;
Go to Considered Replies (http://ltt.wikidot.com/forum:start);
Click Show Hidden (far right);
Click Per page discussions;
Click Create a New Thread (please give a title and response).
Once a Thread is created, you can click on the Thread name, then click New Post and add a reply.
On the screen for thread creation, there is an icon that looks like a chain in the toolbar. It's in the second row of buttons, about in the middle. Click that link and text appears in your input box that looks like this: describe link. Replace the URL with the one you want to link to, and the describe link text with "here" (given the context of this example). It's really temperamental as far as syntax, so make sure there is a space between the url and the description, and no space between the brackets and the text inside.