Greets!
Curious, I've never been to a Brony con, but I do have a fondness for My Little Pony. I only identify my like for MLP within itself though, I am not keen to join a community about it. The comic linked in the OP is quite amusing, I've seen this type of behaviour from young ladies in the few gaming conventions I have attended, so I could believe that this sort of thing can happen.
But that is not the point of this comic, is it? This is a gender reversal of something that tends to happen in any disparity of gender in any community, which in my mind defeats the purpose of the comic. Untill you pay attention to the petty little tit. Then this merely turns into one big sarcasm and a funny one at that.
Nothing should ever be assumed of an individual's motivations for being at a particular event, even if they display their motivations to be ignorant of the content of the community attending. If guys want to gawk at 'booth babes' then fair enough, and similarly should a woman want to stalk the floor looking for 'easy love' then yet again, fair enough. But this is not a perfect world, people will and do judge each other based on their own perceptions and preferences.
If a small group of women come into contact with a large group of men, they will draw attention, similarly the reverse is also true. What type of attention depends on the needs of the individuals of the group. Certainly, of all of the gaming conventions I attended, I had became inanely bored because of the fact that I simply wanted to play my games on my own those days. No amount of booth babes, attention seekers or overly enthusiastic street fighter players was going to allieviate my boredom.
Watching people fight over their assumed motivations can be funny to watch, though.
EDIT: PS: Twilight is craziest pony. No, dont bring up cupca- *suddenly disappears, dun-dun-dun*