Is double opt-in recommended for creating an email list as opposed to single opt-in?

		No; Double opt-in is not recommended because it makes registration a tedious process for the consumer.
		Yes; Double opt-in is recommended because it prevents junk email addresses from getting on the list
		Yes; Double opt-in is recommended because it makes topic targeting easier.
		No; Single opt-in is recommended because it puts the trust back on the consumer.