To be honest, I don't think of it as good or beneficial in any particular way- just something that some people like to do...hopefully that's not too much of a downer...
I agree with this answer, it's just something I like to do! Sure there's plenty of benefits, but I don't really think about it.
P.S - are people okay with me posting these questions? until i can think of other ways to encourage people to post and talk on here, its all i've got!!
Post away, keep them coming!