Three posts total.
One was about his scam project.
One was about the people who were "banned" from participating in his scam project.
Both of those were subsequently edited/deleted when he ragequit after being called out on his attempted scam and general douchebag behavior.
Is it a "grudge?" Not at all. It's simply a matter of taking out the trash. Scammers shouldn't earn here, especially when they refuse to address the issue or blame everyone else for their failed introduction (which was an attempt to scam users).
So, yes. This post has been flagged. As stated above - the users and blockchain don't forget. (Mostly.)