I used this website several years ago as a pre-teen to try and make my own visual novels. I forgot about the website, but never thought to unsubscribe from the website's mailing list.
As of today, 4/27/23, the creator of this website appears to be experiencing a psychotic break. She has sent several bizarre, unprofessional emails via the mailing list in the past few days, some of which contain vulgar language (including ableist slurs) and pornographic content from the CloudNovel Discord. On her public Twitter, she is talking about Silicon Valley and Coronavirus-related conspiracy theories. It appears that similar to when I used it, a significant portion of the userbase is made up of children, which makes this shift in content even more disturbing.
I cannot comment on the technical issues with the website and other problems involving the developer's conduct on the Discord server itself, as I am not a part of the server nor have I used the website in a long time. However, I would not suggest that anyone (especially minors) use this service until the developer gets the help she needs.