User FrConnection has asked a series of questions regarding standard calculus exercises. I personally feel that the (real-analysis) tag should be removed on each of their posts. I removed the (real-analysis) tag on one of the user's posts, but afterwards I felt that it should be up to the user whether he/she should leave it or not. I also left a remark noting that the (real-analysis) tag should probably be removed, but I received no response. What should I do in this case? Should I retag the questions, or is the onus on the OP to choose the most appropriate tags? Put another way, to what extent is it my responsibility to retag such posts?
Note: The few other posts by the user in question are not my main concern. I really have no care whether the posts in question get retagged or not. I am more interested in learning what my course of action should be in the future.