Tvtropes literally has a trope called “Tropes Are Tools aka: Tropes Are Not Bad” as one of their main and most often linked pages. 

“There is one thing that you must keep in mind to retain your sanity here, and that is that including a trope in a particular work does not make it “ruined.” Not even those tropes.

If your favorite shows have long lists of tropes associated with them, well, so does everybody’s. A show featuring an Action Girl or showing a character kicking the dog is not a bad thing; the former is merely a reasonable type of character (badass character who is female) and the latter is a character action that happens plenty in Real Life.”

Don’t you dare compare TVtropes to something like Cinema Sins.