The connection between the lost nano empire and the galaxy was not known to outsiders, and most of the civilizations only took a quick glance before shifting their attention to other things.
The communication with the lost empire depended on their mood, and when the civilization had nothing to do, something more interesting would naturally attract their interest.
For example...
A biological civilization had announced that it would no longer ask about the sea of stars and embarked on the path of corruption many years in advance.
This incident undoubtedly attracted the attention of the galaxy. Many biological civilizations had already sent people to investigate the situation, wanting to understand how this civilization, which had been thriving not long ago, had entered a decline in just a few months.
Li Wenyuan, who was still looking for human remains, also set his eyes on this civilization.