She's done ti to me on her old account, she had 3 open accounts closed 2 now and has only 1 opened now she admitted to me i had some Internet police looking at my account on here sure enough he caught her he ask me if i want prosecute under terms of cyber bullying i said no just let her be she tells people on here she's 17 but she is really age 13.
You cannot see who's given the downvote so you can't say it's from one girl. It could be from many who've disliked your post. I believe it's coincidence if it keeps happening or no-one likes what you say.
It's more common than you think. When I ask a question I'll see a random female up voter or down voter on a question that only a male has answered. It use to be creepy as fuck but I guess some female users like to lurk my questions but they are too afraid to answer. I block anon users so I get less opinions on my questions. My guess is if the question asker selects the option to not allow anon users to answerd it is the users way of answering by down voting or up voting because they are afraid to answer without anon