Definitely a need to welcome new users and give a helping hand. I could do more here myself. 
I’m not sure I’m seeing the same issue , I have noticed with the expansion of my bubble I have lost contact with users I really enjoyed interacting with and gained new ones that seem to replace them. 
I was thinking maybe it’s something to do with the #nostr or even my nature that I cannot consistently and reliably interact with more , it’s like a glass ceiling. Maybe there’s a solution?
Maybe I’m doing it all wrong?
Maybe it’s a common thing?