Two of the despots posted something under their own names 2 yrs ago. I think, though, that one of the Pivotal employees frequently posts under various different usernames.

Guess I am one of the ones from 2 yrs ago, even though I am not aware this has already been 2 yrs. I thought last time was already last year... well, I can be easily mistaken. But I really wonder what those Pivotal accounts are supposed to be. Could be a reason to talk with some people if I had details

You can check chronological comments from a certain user at, say, https://news.ycombinator.com/threads?id=blackdrag or https://news.ycombinator.com/threads?id=glaforge . I was just answering someone else's query when I mentioned that.

Most users on Hacker News use pseudonyms to better avoid the problems possible with having an online presence anywhere, though not all of us can be bothered. I suspect one regular commenter here, though, is associated with the Groovy/Grails developers at Pivotal.