I think it is easy for buyers and sellers if massages are update live when communicating each other under an order. Without this feature, I need to look at email and refresh the current fiverr page or click on the link in the email.
So it is easy if it is updating live when a new massage arrived.
That takes up a lot of resources to program it that way. Instead, you can click refresh which takes only seconds. If you get a new message it will show upon refresh.
My 2 cents would be not to tax the system with unwarranted dynamic refreshes. From a web developer and programmer perspective it is not worth the small convenience. Again, just my 2 cents.
umm i think it will be easy if set an iframe for messages and refresh the iframe every x seconds.
i agree with jrmkr1 it’s strongly recommended.