What makes you think I don't use Rails? I use whatever I think fits the purpose at hand. I sometimes use Rails for a project, sometimes I might use Node.js and other times I'll use PHP. It all depends on different factors like budgets, time, the task and team (if any).

Frameworks and languages are a lot like databases. They all achieve the same thing, they're just all slightly different and good for different purposes. I sometimes use MySQL, other times I'll use PostgreSQL, sometimes I might use a graph database like Neo4j or other times I might even use something like MongoDB.

The Rails community has been around a lot longer than Laravel's community, so you can't even compare them. The only community worthy of being compared to Rails is Codeigniter's and at the peak of Codeigniter's popularity, I would argue Codeigniter had the bigger community. Laravel is a mere couple of years old, the community is already pretty strong. Lets reevaluate soon when the right amount of time has passed and then see where the community is at. You only have to look at the amount of Github stars to see how popular it is.