Here is a real-life example of when people are much better expressing intent than a tool: Consider the following code from a typical Silverlight Navigation application:
foreach (UIElement child in LinksStackPanel.Children)
{
var hb = child as HyperlinkButton;
if (hb != null && hb.NavigateUri != null)
{ .. }
}
Resharper proposed to write this as following:
foreach (var hb in LinksStackPanel.Children
.Select(child => child as HyperlinkButton)
.Where(hb => hb != null && hb.NavigateUri != null))
{ .. }
Here is what i wrote instead:
foreach (var hb in LinksStackPanel.Children
.OfType<hyperlinkButton>()
.Where(hb => hb.NavigateUri != null))
{ .. }