When you push play when they're in a post; you're stuck in the post for as long as they play in the sense that if you leave/continue to another post, they stop because you've gone away from them. You can't read another post and listen to the music from that one at the same time.

Too, because they're here from there :-) they're slower and take longer to load, etc. as they have to go through the PC software than just the URL which takes you to YouTube where they're at.