We all know that's unlikely to happen. Majority of the users on the forum don't care if the topic they're engaging with adds value or doesn't to the forum. If you're doubting then make out time to visit the alternative board and see for yourself. They use this type of post to boost their activity and boost their weekly qouta for the respective campaign they're enrolled in.
Only very few users are actually reporting low quality posts actively, on the forum. Assuming the numbers were high then a reduction in the numbers of these type of post still active would had reduced. Irrespective of these I appreciate what you're trying to do here and hope this thread of yours would encourage more users to join hands in spam bursting.
I am bit confused when report such kind of threads on beginners section because few times my report was marked as bad but literally they are not supposed to be in this section even in the bitcointalk because the information available is reluctant only they way of approach differed.
You're not alone on this as I have had similar experience. I think (my personal opinions though) the mod don't agree with our reports or probably they can't find the right boards to move the topic to. Some topic can be fit in two different boards maybe B&H is one of them that's why they don't move as reported.