So, fellow members of the Giant Bomb community, I ask you; Has the site changed or have I changed?
Both. The site has changed and you have changed. Both are likely to continue to change.
I don't think there's any shame in possibly feeling like you may not want to be premium anymore; though, for me, their content is still well worth the premium subscription. But that's just me. I hope they'll continue to try out new content and something will click with you.