I expected that link to be the general "girls love jerks, so act like one" pick-up artist BS, but quite to the contrary. The tip/story about going to house parties once in a relationship is particularly relevant (and something I wish I'd have read in my younger days!).
That being said, lot of the time most of the guys who complain that they can't get a girlfriend because they're "a nice guy" are generally just inexperienced and going after women who are out of their league. If they lowered their expectations -- and actually made an effort to find out what they really are looking for (rather than drive themselves insane over women they saw as "perfect") -- they wouldn't have had that complaint.