To be more correct, the OP was (and still is) actually about 'unhelpful posts' - which are not necessarily 'off-topic' !Original post about off topic posts now totally off topic.
However, there is no doubt that this thread has been 'ruined', by going off on a tangent, but that was not of my doing. It all started when, back on page 2, ebee wrote:
... after which Sunray and others (including myself) started discussing the terminology relating to midday/midnight etc..... Non of us speaks absolutely correctly all of the time (except perhaps a Lawyer in court) but we usually know what is meant though.
Except, perhaps, 12PM and 12AM
It happens extremely easily, but it has 'ruined' (distracted from) the intended discussion about people who post messages which merrily moan about other posts.