Ya i remember doing a nebula search back then. I seem to remember the search was centered at a distance from sol though. Oh well... I looked in Wredguia OV-X C14-6 and a couple others last night. Will have to see about updating it.No, FD seem to be as bad with rumours as they are with clues!
As I said some of us did a search about a year ago and I seem to remember there was a list of visited systems posted on this thread to cut down on repetition.
Edit: yes, though almost 2 years ago looking at the date-ModishNouns started it here: https://forums.frontier.co.uk/index.php?threads/gcs-sarasvati-early-thargoid-lookout-megaship.380074/post-5989058