Time is money, or are you going to waste it?

If you want to play Starcraft or Quake, go ahead and play them, there's no need to pressure others... Many find it convenient to do their own things (family, work, playing other games, etc.) while waiting for their opponent's turn, while others find it inconvenient. That's why there's a chess timer; you can agree on a time limit, and there's even Alessandro with 600+300, so you can team up and play. I won't say anything about the level of play with such a time limit, so as not to offend anyone.
The St. Petersburg community grew (in 1999) playing Divided Loyalties with a 2-minute time limit, and QuickCombat (3 tactical combats per game). There was no need to think much; all the moves were practiced to death. Gradually, people realized that this wasn't really a game (everyone would spend half an hour thinking about what to do in battles, and some even spent an hour...).