Folder Children Collection HTTP method description confusing.

494-498 - the purpose of the parenthetical info "(POST to folder)" and "(Entry)" doesn't make any sense - of course it's a POST to folder, as we are taking about POSTing to a Folder collection. So what information is trying to get out here? And what does Entry mean? Are these somehow intended to give us insight into how to decide which service is to be performed? Needs consistency of meaning and more explanation.