I do, to a certain extent, take your point annasmami (although I wonder quite what you are doing reading opinions on names if you feel that they are in principle wrong). However, as far as my target (Lucretia) is concerned, whether I comment on it or not will, I am sure, make no difference as to the number of 'poison' and other comments the poor child gets. And indeed, whilst previously noted, like all MNers I am sweetness itself in real life, quite frankly if someone told me they were going to name their poor child that - or some of the other names on here - I would open my big fat gob and say please don't.
As to whether opinions/'classification' of names is mainly an anglo-saxon thing then again, there is some truth (although my French friends will happily tell me that some names are smart and some not exactly destined for ENA). But do remember that in other countries the church has, until very recently, limited and 'approved' the number of names which can be used (which, when one hears of some ludicrous 'TallulahdoestheHula...' names one feels might not be a bad thing!).
Finally, my own elder DD's name has been described as 'dull' on here. I don't mind. She's named after a beloved grandmother and I love the name and have confidence in my choice. But others are always entitled to their own opinions.
I do agree that to mock the poor (chavs if you must) is a rather mean pastime. I also note that some who find it great sport to laugh at 'Chardonnay' get incredibly offended if you dare to suggest that you don't like Annabel or Tarquin. But again, we are all entitled to our opinions. And I presume that, ultimately, people read them because it's entertaining.
sorry for long post.