That’s a reasonable opinion to hold.
Whilst the METHOD (i.e. internet) by which the flight is offered is legal, offering the flight as you describe may not be if it is seen by the authorities as offering an air taxi service. You obviously see it as both a regulatory and a safety issue, so why don’t you report it and see what happens?
Edit: this was in reply to the previous post and I have not seen the advertised flight myself.