There is a difference between questioning a person's salvation out of love and genuine concern and accusing one of being lost because of argumentativeness or out of spite.
This, I'm sure, is posted in jest to make a point. If it is deemed inbounds to make accusations like this as a matter of course in debate, we'll see this kind of thing repeated more often in anger.
There is a difference between a false prophet who is not saved and a false teacher who is saved but has doctrinal errors.
Your post clearly shows the false prophet's lack of salvation.
This, I'm sure, is posted in jest to make a point. If it is deemed inbounds to make accusations like this as a matter of course in debate, we'll see this kind of thing repeated more often in anger.