Agree, they look fresh. Last year's rubs would show a rolled edge on the bark as the tree tried to repair the damage over the growing season ( if the tree didn't die). New rubs often look shredded and have torn edges w/o bark healing, and have fresh scattered bark shreds around the base of the tree. Also, you can often find hair in the new rubs. Deer often hit last year's rubs again - just kind of freshening them up, so it is worthwhile checking out old rubs too.
Posting up there on opening day might pay off. It depends on how the season is progressing. If there are does getting close to coming into estrus in the area, then that buck may be working his rubline daily. This may also just be the tree he decided to polish his antlers on or rub off his velvet. He may not begin to rub again in earnest till late in October. You just never know. One thing is for certain, he's living in the area, or passing through on his way to and from feeding.
