I had an interesting chap by the name of Username deleted claim "boring" and leave the table. Not the first time this has happened, but the first (luckily) for me in quite a while on the new platform. I know I'm sometimes guilty of having Dominion on a second tab or something and not always being super prompt on my plays, but there's courtesy and then there's this.
Also, does anyone actually consider voluntarily resigning when the game seems obviously in my opponent's favor to be discourteous? I typically do so when I am ready to concede and move on to another game with that individual. If I can't do another I tell them as much in text before resigning.
Oh well, maybe this is the price we play for playing online?