<human>: Give me the gist of the text in a nutshell

So yes this actually happened today...someone will probably find the thread because I'm not using a throwaway but ah whatever. I'm a pretty avid Snapchat user, I love posting and also watching cool snaps, I came across r/snapchat and noticed throughout it I noticed a lot of [F4A] posts getting lots of attention. 

Wondering what that meant I decided to turn to my best friend Google, clicked on the first result and the first definition I got was "Free for all", I thought sweet, that's what people use when they want anyone and everyone to add them up so I figured I'd take a stab at it.

Here's my FU...I went ahead and created my thread "23 [F4A]" and left my snapchat username, I was so happy when I began receiving a plethora of adds. I was even happier when the people started engaging me, "Hey! How's it going?" from a few of my initial new snap friends, so nice! Then things started to get weird...a couple of people asked me for selfies, then a few asking for me to show them something "fun", and then some shirtless random males asking for me to return the favor. 

It was at this point that I knew I had f***** up...I double checked and realized that [F4A] was used by females and proceeded to delete the thread ASAP.
<bot>: didn't realize how reddit illiterate I am and accidentally made myself appear to be a female when I am really male.