Hi! I am currently experiencing this issue also and it happened for three users already. They have been sending me comments on my previous posts and it’s just weird now that their comments on a particular post all went to the Trash folder. I have not blacklisted any word or anyone in my blog. But I do moderate the comments before approving it. Do you have any idea on why could this be happening? I’ve disabled CommentLuv plugin as I’ve read that it can have problems with the Jetpack plugin.
