WordPress Speed Up Service | WordPress Website Maintenance Packages I have comments enabled in my posts. I require that individuals should be logged in in order to be able to submit a comment. Also, the first comment is required to be moderated. However, I still receive different useless comments in my site. I dunno how they do it. Most of the comments are in Chinese/Japanese characters and I can't understand a single word. How are they able to post a comment when in fact, I require that users be logged in before being able to comment? How can I check who's sending spam comments? How can I get their ip address? How can I block them?