Nothing irks me more on a 3 hole match, except maybe for the guy who tells me over a 2 foot tap-in on the last hole that the only reason I won is because of my "rank number" (I don't know what that is) and then simply disconnect without forfeiting requiring me to wait for multiple timeouts before I get the credit, XP's, and apparel pack due me. With the 30 minute apparel pack rounds this can be the difference between getting a third round in under the wire.
I've started blocking these folks. At a time I thought the disconnect was mere ignorance on the other players part but this morning I had someone disconnect, reconnect just in time, and then let the shot clock run out twice over a 4 foot final putt on the last hole. There should be a thread where these folks can be publicly shamed.