Because it doesn't convey anything to anyone who doesn't already agree with you, especially when you just drop the name and treat that as if you've proven something. It's not a way of progressing a discussion, it's a way of stopping one.
I'd also note that mentioning George Soros being involved in anything gets condemnation here, so the same thing applies to both sides to at least some extent.
Now that your comment is flagged, I no longer remember the context. Maybe I'm getting older, but it seems like flagging is used as a downvote button lately. I don't think your comment was flag-worthy.
I'd also note that mentioning George Soros being involved in anything gets condemnation here, so the same thing applies to both sides to at least some extent.