About 5 years ago I was banned once from Stack Overflow for trolling in the comments of a question. I can remember that my ban was automatically lifted after some of my own questions had received some up-votes.
At the time I didn't really care about the whole ordeal but now I kind of do. The reason for this is that on the one hand I've accumulated a decent amount of reputation points since then and I wish to post the flair of my SO account on my LinkedIn account. But I'm hesitant to do so because there might still be some log or record attached to my account that recorded the fact that I was banned and may even include the reason why I was banned.
Does Stack Exchange or its subsidiaries keep any records on how often a user has been banned or warned by a moderator?
If so, for how long is such a record stored?