I have personally seen it. I’ve personally been accused of mansplaining when correcting someone on something I know a great deal about, and immediately after watching them do it very wrong. Honestly I’ve probably seen it used defensively to delegitimize the man in question much more often than I’ve seen actual mansplaining.

I’m not saying it’s not a real phenomenon, but it seems more often to be a term used to shut down legitimate communication.

I’ve seen this one, too. There are women out there who are using this concept (and the concept of “old white men”) to shield themselves from every form of critique, even if they were totally wrong. There are men out there who are behaving idiotic, but there are also women out there who are behaving idiotic. And I feel that the concept of mansplaining is getting abused by idiotic women and is therefore used against “innocent” men who really want to help. Esp. in the internet the concept is often used as “you are not allowed to say anything because you are a man” and that totally is not helping anyone. Women are getting frustrated because of course the other side will react negatively when you are communicating like that and men totally will think that those feminists are really big idiots.