I do not see anything mean spirited in any way with the messages on this thread,just opinions and view points; you could argue that is in good input for a potential buyer to see this.
In fact, there have been far more damning comments made on cars for sale in this forum, but those are normally on non-paid-up club members cars.
If the no comment/discussion rule is to be enforced would that apply to all statements, including the " wow, love it, what a deal" type?