It's such a stupid practice that I generally only see used on reddit to prevent "harassment." I've always thought it was a stupid policy, even for DMs. If it's a public comment, then you've just made more work for people trying to track the post down. If it's a private comment, you've already betrayed that person's trust by reposting it, what difference does leaving their name in make?I wish people wouldn't do that. I could understand it if it was something said in a dm, but it's stupid to censor the name for a comment made publicly.