We're making fun of it because it's only edge-cases where you would want to not play a Smithy for fear of drawing cards dead that would just be dead next turn if you hadn't played Smithy. Why would you want Estates in your hand next turn? The only thing I can think of is if you also had multiple Crossroads that could end up drawing multiple cards off each Estate you started with. This reasoning does not make Smithy a bad opener, since you aren't going to have that engine in place after just one shuffle.
You can talk about reshuffles all you want and you have some ground to stand on. You can talk about optimizing engine building by finding a better opener and you still have some ground to stand on. Good times. Most of the base set card "how to"s pertain only to the base set anyways, where Big Money is usually dominant, and in BM+Smithy, I think we've conclusively shown that Smithy is the correct opening.
The difference between us and eHow is that there you have people giving advice that is not only too generic, but is not a good idea a vast majority of the time and for the wrong reasons (and that give reasons for their advice that don't make much sense to experienced players). Here, you have people who will not even attempt to give such advice, but will rather analyze all of the exceptions to the rules to the point where we don't even know what the rules are.
It always depends on the kingdom, but talking about all of this extremely detail-oriented stuff doesn't do anyone any good if there is no understanding of the generic case. I don't play Dominion hoping to memorize the way every single combination of two cards interact. I try to understand the generic ways that cards can be good, how well they fit those roles, and then think about specific interactions only when presented with a kingdom that may suggest such an interaction.
Aside from certain combo decks that play very differently from this mold (NV+Bridge, Hermit+Market Square, WS/Gardens, etc.) the only advice that has a huge meaning to me, and almost all of the advice that's made me a better player has been generic in nature.
However misguided their advice may be, maybe there's something we can learn from it?