A “comment” is a reference to the tour that can be valid for months or years. Did you like the tour? Are there important tips and hints you should consider? For instance, is the track closed during the winter months? Images and ratings are also part of the comments.
“Current conditions” are every piece of information that are only valid for a short period of time (days, or a few weeks). So, for example, the current snow conditions (powder snow, hard snow or no snow at all) of a certain region or when a track is closed at short notice due to construction or logging, etc.
You find more about that topic in the article „What are current conditions?“.