<human>: Summarize the given text in a few sentences.

Long story short: I always talked about reddit and how amazing it is, always showing her funny posts and my own creations (unfortunately not always falling into the same category). Well she graduated in June, three weeks after 18th birthday, and moved on with her life. A few weeks ago I'm browsing 'New' in r/gonewild and KNOW that's my sister's tits. Now would be a good time to mention I'm female, grown up in a house of females. I've seen my sister naked (we shared a room and exchange clothes; locker-room mentality) more times than probably anyone else has (including her boyfriend). Seizing the opportunity to troll and simultaneously teach my baby sister a lesson, I whip out the ol' throwaway and leave a comment saying "I know where you sleep, N" (her name starts with an N, so I left it as just an N). Sure enough I get a PM demanding to know who I am, and I proceed to fuck with her, letting her know I know down to her apartment number, and she doesn't know anything about me. I tried to drop hints to my real identity, but showing her the power of anonymity was too good a lesson for someone so new to the big wide world; I came across sounding like any number of people she knows, and she never guessed correctly. I stopped writing after a few days, leaving the conversation hanging. I'll tell her the truth in a few months, but I think giving her a real lesson on the dangers of anonymous posting (in real-world context) is the best, loving thing as a sister I can do for her; let it stew in her mind for a while, if you will. Who knows? Maybe the power of anonymity will allow her retribution on me for posting this? I don't really care one duck fart from another. Makes me wonder: Who else has discovered another Redditor's identity, and what did you do with it? Did you abuse the power like I did, or did you come clean right away?
<bot>: Recognized my sister's tits, messed with her brain, and left the conversation hanging. Wondering who else has been in my position (maybe or maybe not regarding your sister's meat melons), and what they did?