Oh don't worry, Knox supporters know exactly what the Daily Mail is and are very quick on other sites whenever the Mail says something about Amanda they don't like.
However, in this case, I've found it best to trust specific journalists rather then specific papers...for example, Nick Pisa is very reliable no matter which paper his stories are run (uncluding the Daily Mail). He has followed the case from the beginning, speaks Italian and has attended all the hearings. The others that are good are Andrea Vogt, Barbie Nadeau and Ann wise. And while they haven't covered the case so broadly or often, also worth reading are Richard Owen, John Follain and Charles Mudede. Of course, I've only included the Anglo reporters in that list, not the Italians. There are some good Italian reporters also.
Well we discussed the status of the various uk press sources way back when ARubberChickenWithA Pulley was active in this thread, so it is not new information even to the americans. We discussed particular journalists at some time after you joined the thread as well. So there is quite a lot of evidence which seems to support your idea that this is a bit disingenuous: but it is not a certainty. No-one's memory is perfect.