You of all folk know how it is M,when you say your retiring from a thread then as more comments and info comes forward you have a urge to comment
I'm sorry you find folk who wear a niqab intimidating and offensive,what 'exactly' are you scared of?
Maybe it's because my IQ is lower than 10 ,but it seems a little ludicrous to suggest that these women who are out in the world on a daily basis (interacting with society) don't want to interact with society.
Also,if these women can communicate in their homes,society etc while they wear a niqab then your argument that niqab is a barrier to communication holds little water.