Very much this. I've got an almost automatic habit of opening reddit when I'm bored and don't have much to do. After a couple of times of seeing that message, I've been searching for the lemmy counterparts for my favourite subs. Turns out a lot of them are getting some steam!
Sublems is an absolutely fantastic word that I am now adopting! E.g. "Hopefully soon Jerboa handles sublem links better in comments. That's something I loved about Relay"