Something like that happened when I tried to send a private message to a buddy of mine on this site. It ended up sending the same message like five times.
And to answer your question Grief, I've actually done a Sombra rant. Its older and the drawing isn't as good as my newer stuff and I was still fine-tuning the "finger puppet" style. I was more focused on how the fandom in general views him as a plot device and not a real character. This rant got kind of mean, meaner than the rest at least. I actually fell kind of sorry for Sombra here. And yes his name is spelled wrong on purpose. One person really passionately defined Sombra in the comments of this one. Its seriously one of the longest comments I've gotten. I don't know if I've shown you all my other rants or not. I've done rants for Pinkie, Twilight and Applejack so far.
Multiple posts like that happend when you keep hitting submit after getting an error screen. The database was being tinkered with, so everytime you saw the Error screen, you should have been seeing the "this message has been posted screen", and once the database was back online all those messages posted.
"Suddenly Frodo noticed that a strange-looking weather-beaten man, sitting in the shadows near the wall, was also listening intently to the hobbit-talk. He had a tall tankard in front of him, and was smoking a long-stemmed pipe curiously carved. His legs were stretched out before him, showing high boots of supple leather that fitted him well, but had seen much wear and were now caked with mud. A travel-stained cloak of heavy dark-green cloth was drawn close about him, and in spite of the heat of the room he wore a hood that overshadowed his face; but the gleam of his eyes could be seen as he watched the hobbits."