I often enjoy the site but I tend to think it does more harm than good. Somehow people have equated the notions of "trope" and "stale" without ever pausing to note that every story that can be told has been told in some form or fashion. There aren't all that many stories to tell.
Where some take that as a crushing truth and seek to denigrate some work or another because it relies on famous plot conceits (For example, Avatar was lampooned for basically retelling the story of Dances with Wolves), I'd simply point that this is true of all stories. But, just because you've heard all the details doesn't mean they can't be arranged in such a way as to be pleasing. Dances with Wolves is an incredibly tedious exploration of most of the themes of Avatar. If asked which I'd actually want to watch again, I'd pick the one that doesn't feel like a chore even if it is at least the n+1 retelling of the story.