Wouldn't it be a good thing as that would open our eyes to the fact that Wikipedia articles are really not reliable at all? I don't see how a fast deletion mechanism makes the articles more reliable.

The proper solution seems to be to let the articles stay, and learn that they don't have much weight.

And if deletionism is a reaction to SEO optimization, as the other comment states, it is even more of a tragedy. Really, we have to delete articles for fear of somebody getting an unfair SEO boost? Again the solution seems to be to just lower the impact of links from Wikipedia.