Comment by nilslindemann

Off topic: This CSS improves the usability of that page:

    ul.threadlist li:hover > a {
        color: red;
    }

    ul.threadlist li.origin > a {
        display: block;
        background: rgb(205, 216, 216);
        font-weight: normal;
        padding: 1px 6px;
        margin: 1px -6px;
    }