If you climbed in a tree during the rain and sat the last hour and a half while it cleared off, I am guessing you saw good action last night.  Wish I could have but a four letter word (W-O-R-K) won out.
In regards to scrapes, I saw one opened up yesterday morning on my way out.  Had cam pics of a couple decent bucks going at it for 30min.  Looked like the one was pestering the other while establishing a pecking order.  The larger of the two stayed his ground and finished attending the scrape afterwords.  Probably just out of frustration if I had to guess.  Looked like a 3yr old 125-130" 8pt.  You would think he would know what was up in regards to the rut by now.  Maybe just was pissed at the other buck.  I dunno.  I am sure there are multiple reasons they tend scrapes.