"Sandpit" sounds like the name given to an account that multiple people may be using in a test environment, rather than something meant as an actual ID.
The name on the forum thread is sandipt. This is what happens when lazy non-journalists fail to do the most basic detail checking. Or seek a more credible source. Or seek an official comment.
Yeah, I read through the forum to set whether this was a mistake in the article. I think my point was that the lazy author was the source of confusion of the name.