Like so many others, I don't think it is a good idea to put user generated content on the main site.
For example, take the questions of the day or some of the more opinion-laden pieces that have appeared on Tom's - do these really belong in the news feed section? I don't think so. There should be a news feed, and opinion feed, and QOTD should be in a front page linked forum so that features like polls could be implemented.
For hardware reviews, I am a proponent of a collaborative wiki. There citations or documented evidence should be required, and each article would cover a specific piece of hardware or comparison.
For example, if I do a comparison of frame rates of graphics cards, I should define my test bed and what identical actions were performed on each card. If I used a script of particular program, these should be named and/or provided. Screen captures should be provided, preferably in video format, to back up my claims. If someone should replicate my testing procedures, then they could add their content to my article and update it if the conclusions have changed.
I guess what I am trying to say is there is a place and method for presenting anything - and when trying to maintain a reputation for quality, a company needs to carefully consider how the content is laid out. If news is about how such-and-such "sucks", or is filled with QOTDs, what does that say about how the company perceives "news"? If vaguely defined and seemingly opinion based content from casual users are presented in the same format as strictly controlled tests, what does that say about how the company perceives "reviews"? Blur the lines, and all content will be judged based on the poorest quality set - something I don't think Tom's wants to see happen.