Gamespot has changed how users level up. Instead of gaining XP for browsing the site, browsing the forums and watching vids, now the only way is to check the main page once a day or post comments on the forums/stories/blogs.

This is how you can level up now:

Visiting a GameSpot.com page while logged in: 500 XP (can be earned once a day)
Commenting on a story: 20 XP
Posting in a forum thread: 20 XP
Creating a new comment thread: 30 XP
Posting a user blog: 100 XP
Earning an emblem/achievement: 50 XP
Rating a game: 10 XP
Following a game: 10 XP
Being followed by another user: 100 XP

Most of the time I don't reply to the forum posts unless I have something to add.. I guess we'll see a lot more spamming done. Not that it really matters. I don't think anyone cares about the levels anymore.