Bah. TV Tropes just makes themes easier to locate; it’s not like people haven’t been doing this for years when analyzing literature and mythology. If something is a overly common trope, that gives you ample opportunity to either subvert it or take the time to execute it very well indeed so it’s considered exemplary rather than derivative. Instead of “Well, I’m doing a story about subject X, so according to TV Tropes, I need to have Tropes A, B, and G–R in it.”, say “I need to turn Tropes A, B, and G–R on their freaking heads.”