When did I ever say encountering dragons was a punishment? I actually like what I've seen of Skyrim's dragons so far, however, we already know dragons can attack randomly, that's not what I was referring to. What I meant is to say that this thread is suggesting adding some kind of penalty for not doing the main quest quickly enough, and when I think of that, what I think of is not dragons attacking, when I think of being punished for taking too long with the main quest, I think of towns being destroyed, characters being killed, or just having certain parts of the game's content entirely closed off, or even just outright losing, THAT is what I mean when I speak of punishing the player for taking too long with the main quest, not being attacked by dragons. As you said yourself, dragons are supposed to be part of the appeal of the game, if fighting them becomes a punishment, then we have a problem.
Thanks very much for clarifying this.
I highly doubt Skyrim will lock off any content or make us "lose the game" if we dally a long time before completing the main quest.
In numerous interviews Todd has stressed that he knows there are two types of players, those who might rush into the main quest, and others (like me) who have been playing Oblivion for years and never even scratched the surface of the main quest, and that they designed the game with both types in mind.
What they tried to do with Skyrim is entice us to progress at least a little bit in the main quest by giving us words of power to learn and a reason to hunt dragons (to absorb their souls), ultimately so we can learn new dragon shouts. Each time we do this, we are progressing a little bit in the main quest.
I have no idea whether some NPCs might get killed by dragons, however if that turns out to be the case, personally, I think it adds something really cool to the game, a bit more believable game world. After all, there are dragons in this land and they are dangerous creatures. That is not something that would ever make me rush to complete the main quest.
I will never complete the main quest of any TES game until I've been playing for at least a few hundred hours and I'm ready to retire the character and "end the game." Some people might enjoy finishing the main quest and then continuing to play, but personally, I feel like the game is over at that point and I enjoy putting that off until I'm good and ready, perhaps 300 - 500 hours after I start the playthrough.