Dear members and moderators, are you allowing questions in this forum about specific PhD programs and scholarship offers? Is it appropriate and ethical to raise a question about some specific department and research members of a PhD program, anecdotal experiences of members on that department, insight of the situation and working environment there, quality of research, professors, students. Scholarship options and working contracts. Can I explicitly mention names, programs, department and discuss about them here?
To answer your questions, I would say (1) no, (2) definitely not, and (3) VERY definitely not.
You can peruse the on-topic and off-topic FAQ sections to see what we look for in questions. We definitely don't want anyone to publicly call anyone else out. We are a community where you can seek advice, but we cannot take any action... we're just strangers on the internet. You can ask questions here about what direction to take but please keep them anonymous and as factual as possible. "He said she said" or "I'm ticked off because" will rarely improve a question.
If you need action to be taken, you should go to your university administration.