I know this question was not directed at me, but YES, this is positive attention. And YES, this attention will benefit this child as well as others. Whether he is gay or not, people need to understand:
#1 - Allowing a child to wear their choice of Halloween costume, no matter the gender stereotype of that costume, will not change that child's gender identity or sexual orientation.
#2 - People need to see a mother's unconditional love for her child, no matter the judgment's of others. She will love him regardless of whether he turns out to be gay, straight, bisexual, transgender, or other, regardless of whether he wants to play with stereotypical girls' toys instead of boys', and regardless of whether he wants to wear dresses instead of pants.
#3 - Bullying is not okay. Whether it is parents bullying other parents for what they allow their own child to do, parents bullying children, children bullying children, or whatever. Bullying is NOT OKAY. And just because something is different, doesn't make the bullies right. This child should not have had to change his costume because it made OTHERS uncomfortable. (And the only reason he was uncomfortable is because he was afraid of what others would think. That he would be bullied. Again, NOT OKAY.)
#4 - People need to ease up on gender stereotypes in general. It is not a gender binary. None of us are 100% male or female. We all have characteristics of each, and lie somewhere on a SCALE of gender. Certain toys and clothes should not be labeled "boys" toys or "girls" toys. Why should it matter if a boy wants to wear a dress and play with a barbie doll, or a girl wants to wear camo and play with tonka trucks?
I was a huge "tomboy" growing up, and still am to this day. For some reason, it's okay for girls. Just shows what a masculine-dominant world we live in. It's okay for girls to imitate daddy, want to wear daddy's clothes or be like daddy, or to dress up like male figures. But if a boy wants to imitate mommy, wear mommy's clothes, or dress up like female figures, suddenly it's all wrong.