I believe butchers regularly "scrape" their blocks and I also believe they use(d) their knives to do so. Have actually watched a butcher, from whom I often bought (back in the 60's) do this. I think this is also why when you see a real antique block it has a big slope in one direction, the common place the butcher stands. He would do this every night when finishing up, sometimes in between, depending on how busy he was. This was not only to 'clean' but to smooth the wood from cuts, which in itself was a cleansing action.
I use soap and water and don't worry about it. LOL, don't know if I would use Windex though! although I admit I've never looked at the ingredient list on the label. I have many wood boards and don't differentiate between boards or foods, just make sure I clean.