It means a person who's real life is fulfilled, compared with those whose virtual life only is fulfilled.
Internet connects people easily, but everything starts after getting connected.
For me, "ria ju" is a normal thing.
I believe people are just going through a major change after Internet came to use. But they will soon realize they real life is more important.
If they can use SNS and other services available on Internet more wisely, it will certainly enrich their real life.
Then, they will stop using the word, "ria ju."