In <http://live.gnome.org/Empathy/AccountsAndSettings> I have specified that Empathy should use [+][−] buttons for adding and removing accounts, rather than a delete icon next to every account. And the Empathy developers are considering implementing that detail of it, at least, for Gnome 2.30. So I don't think Empathy should be used as an example for whether the delete icon has a good or bad design.
I don't think the No symbol is a great design for delete, but a trash icon isn't good either; it would falsely suggest that the item was going to be sent to the Trash.
In <http:// live.gnome. org/Empathy/ AccountsAndSett ings> I have specified that Empathy should use [+][−] buttons for adding and removing accounts, rather than a delete icon next to every account. And the Empathy developers are considering implementing that detail of it, at least, for Gnome 2.30. So I don't think Empathy should be used as an example for whether the delete icon has a good or bad design.
I don't think the No symbol is a great design for delete, but a trash icon isn't good either; it would falsely suggest that the item was going to be sent to the Trash.