If the Nats pitching is gonna stink this year, then by all means, move the fences in and at least let the fans see some runs being scored. I'd rather lose 12-10 and 9-8 games than 8-3, 7-1, and 6-4 games 4 and 5 times a week. At least with the high scoring games, Nats fans would have a better chance of seeing their player's names on the league leader board. Right now they have to start looking from the bottom up.
As it is now, having the fences so far back is useless... If the Nats a good pitching, and scrappy hitters, I'd leave em deep, but the Nats have neither, so bring em in.