While there are a few posts on the subreddit that deal with Mother Teresa, they are quite old. As a result, I'll point you to our "cousin" sub r/badhistory and to the top post: "Saint Mother Teresa was documented mass murderer" and other bad history on Mother Teresa written by u/rodomontadefarrago which is "... neither to be a defense nor a vindication of Teresa; rather, adding some much needed nuance and assessing some bad-faith approaches to the issues. "