Don't give yourself that much credit man :-P. It just happens the moment you clicked submit their account went into suspend due to lack of paying bill or upgrade. Had you not visited their site in 10 seconds before it went offline and attempted after they went suspend mode you would not think it was you all along...
But I guess you knew that from the beginning which makes me wonder why you blamed yourself from the start? Suffice to say, even if what you said is true that it was indeed your fault (which it is not) it does show bad coding in php and SQL on their side that an average user could crash their site. But seeing as how the code have being working for years I doubt you single handily by clicking submit caused an entire two domains down in one shot.
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Did I ruin the fun/joke for you lol?
