At some point in time I noticed that I can delete comments and reviews. The only ones I've deleted so far have just consisted of scams.
In the past few weeks I've noticed a decent amount of comments that seem to have been deleted for unknown reasons. There's a separate notification area for chapter comments and clicking on would open the comment.
For example; there was also a scam comment that I saw yesterday that I wanted to delete, but it just wasn't there. Just a heads up, W3bn-0vel either improved their auto delete bot systems, which is bad news or there are some random moderators going through chat.
If a comment of yours seems to have disappeared, it definitely wasn't me.