[masraum]

I haven't read the article, but the title just says "least popular designs", not "bad designs".

The 914 isn't as attractive as a 356 or 911. I remember at one point thinking they were ugly. They have grown on me. I've never driven or ridden in one, but I think they may be a fun little car.
The 924 was, to me, very boring and looked too much like an early RX7. The 944 is better with the flared fenders, but still kind of boring because they look so much like a Japanese car to me. I'd take a 951 in a heartbeat, and I think the 968 with the round popup lights is a much better looking car. The round popup lights give it a lot more character and add more Porscheness.
I've always thought the 928 was cool.
The headlights on the 9x6 were a huge mistake, and probably cost Porsche sales of both.
The Cayenne when it came out was fairly unloved by many/most folks.
At least the 912 still looks cool. I read something once that said that they had poor sales because the cost of a 912 was too close to the cost of a 911 without the performance.