returns 102 Qs and As
My user page indicates 89, but the onhover adds to 87.
So I have 12 deleted posts on SO for C# (eh, wow), and the search returns the count of all of those, but I can't see all of them. (not 10k yet) Adding the "wiki:0" qualifier (as one example) changes that to be "accurate".
@TimStone points out this demonstrates the problem nicely: