Good tirade. I grow weary of this whole pace of play issue. To me any round in 4.5 or under is a non-issue. When I hear people stating that any 4 should complete a round in 3.5, or boasting that their 4some can finish in 2.5, that is an issue. Would you go to a nice restaurant with the sole purpose of eating as fast as possible? Do you go fishing simply to get done as fast as possible? Why would any moderately sane person do ANYTHING enjoyable with the sole purpose of finishing as fast as possible???? I just don't get it.
What you and Wisguy fail to realize, is that a competent two-some playing in 2.5 hours is NOT playing as fast as possible, in fact, it's not rushed at all. That's simply playing ready golf, keeping the ball in play, and not dilly dallying around.....
If you prefer to spend the whole day out there, that's up to you, and I won't criticize you. As long as you're not holding up the rest of the course, and allow those that play faster to play through when there's room to do so.
But again......we're getting off topic. The OP asked a specific question and the answer remains. If someone is playing faster than you, no matter how fast you think you're playing and there's room to do so, it's just courteous to let them through. As an added benefit, you won't feel pressured to play faster than your own personal preference either.