Their ANN thread, which in the past could be found here:
https://bitcointalk.org/index.php?topic=2245597.0, is gone. Not sure why or who deleted it.
You can view an archived version of it
here. Their official profile, which is apparently this one:
https://bitcointalk.org/index.php?action=profile;u=1189399 doesn't seem to have any posts when clicking 'show last posts of this person' despite the forum saying that they have 40. It's reasonable to assume that either they deleted it (for whatever reason) or a moderator did.