Boardgames are great, but they are an enormous pain in the ass. This is both part of the appeal and the reason more people don’t get into them. They’re heavy, generally expensive, they require hours to set up and take apart, as well as gobs of free time penciled into a handful of people’s schedules. (We are speaking here of the deep, weighty, Boardgamegeek-type of boardgames, not the anything-goes social interations that, say, the Spiel des Jahres celebrates.)  So the 700,000 people that have signed up for Roll20 since it launched in 2012 have sought something easier. The online service…