Ibrahim Balic "ruined" it, though public bragging (which is not responsible disclosure).
Some people dislike the term "responsible disclosure" and believe it's not a moral imperative:
https://hn.algolia.com/?query=author:tptacek%20responsible%2...
Of course what Ibrahim did wasn't full disclosure either, so he shouldn't be fully congratulated. But bragging about it was better than keeping silent about it in this case.
Ibrahim Balic "ruined" it, though public bragging (which is not responsible disclosure).