I cried so many times when I was getting over my ex gf it wasn't pretty.
Looking back I can think of only one word, and it is 'pathetic'.
Not to say all crying is pathetic, but my recent (and it was years ago) examples are pathetic.
I have yet to shed a tear since.
I consider crying to be a loss of emotional stability, and whether you consider that to be a good bad justifiable or whatever, that determines your answer to this question.
I consider it a bad thing. I am also a stoic.