I depends... Ephemeral and superficial connections are all the same in real world as they are online. The biggest difference is that it is easier to jump in and out of the conversations online without much awkwardness as you’d have in real world.
In a coffee shop it wouldn’t be acceptable to get up and leave in a middle of conversation with another person just to sit down on a next table to strike another conversation. Well, maybe in speed dating it is ok.
I find value in online conversations by talking to interesting people. They share something fascinating, educational or uplifting and it in certain ways it enriches my life. I would have never met them in real world, but online I can.