First impressions are lasting impressions. I'll concur that many sites don't deserve to be in the index, particularly those that are Made for AdSense and offer very little if any unique value for the visitors.
I'd say they should be treated as "sites of lower quality" and be purged from the publicly available index to make room for other "sites of higher quality".
Unfortunately we don't really allow site reviews here at WebmasterWorld. There are some very obvious problems with the site in your profile hence the reason MSN may be flagging it as a low quality site.