It is just a server in your home. Cloud hosts will all give access to your data to law enforcement without any warrant, so if you host a private message board

It is just a server in your home. Cloud hosts will all give access to your data to law enforcement without any warrant, so if you host a private message board with friends where you talk about smoking weed or getting an abortion it isn't so private and you can get arrested without them ever going through getting a warrant with any kind of probable cause legal procedures. In your home you are protected (this is why Hillary's email server was self-hosted, to get the same rights against unreasonable search and seizure you get with US Mail), on the cloud the third-party doctrine rules and they can just give out your private data at any time. (some providers have now said they won't give it out for requests about people seeking abortion, but that could end up in there when they search it based on a request about something else, and I don't know if any put the restriction on sharing abortion stuff with law enforcement in their actual legal agreements)