This question isn't well researched. It's difficult to investigate those realms which have been neglected, as opposed to those rigorously attended.
One of philosophy's great attractions is arguably its promise (perhaps 'promise' is too strong a word) of enabling fearlessly enquiry. The philosopher, it might be claimed, is a person who is unafraid of applying intellect, logic and evidence to any domain; a person who acknowledges that to shun enquiry is to shun knowledge.
Are there any aspects of our existence that we ignore, perhaps because of fear of stigmatisation, for fear of asking the question? Can any such examples be reasonably addressed on a forum that must maintain some adherence to social expectations?
I write this question with no examples in mind. It is a question motivated by what seems an obvious contradiction between the ideals of philosophy and any political climate amidst which it is located. I do not seek either to provoke emotion-laden argument but merely to identify any areas (vague or otherwise) that we are wary of examining, and perhaps also to identify any consequences of such a fear.