Besides starting with the same keyword, Hear and Near have the same visual shape and sound almost identical. I think it's very similar, in my opinion, certainly enough to confuse a potential user. If you don't defend your trademark, you lose it.
'Clark Evans is near me, as he is in SoHo.'
'Clark Evans is here in SoHo.'
I mean I have to think a bit harder in recalling who's who in this argument. Even the more popular case of Apple Corps v Apple Computer is more distinguishable.