Clue is the knowledgability of the source. Clue may also by tempered by reliability. Thus Bill Gates should have high Clue, except for the underlying suspicion that his words are tailored more to add to Microsoft's profits than to educate or explain. Expression is the readability and humour of the content. There was real competition for the benchmark of the zero rating.
Taste measures the offensiveness of the content.
Posting nude pictures of either Ms Minogue may occassionally be of high taste, but posting a nude Senator Harradine would always be tasteless. Image Polisher Turner did admit some shortcomings to the scheme. Unfortunately, my access to Senator Alston's media releases appears to be blocked. We already have glossy literature and really cool t-shirts. Product literature is also available, although the photocopies of the manuals that we promised last month aren't yet ready as our work experience author went back to high-school after two weeks saying we were exploiting her.