This comment reminds me of people who complain about the design of Hacker News, and miss the point entirely.
Plenty of fish has a large and growing user community. I know of more people (personally) who have met dates on POF than any other site (though I am in Canada, where his community is strongest).
The worst part of the design is that it squashes the photographs and makes people look awful. The photos are too small as well which makes them almost useless in some cases. The userbase is pretty bad, but that's my personal experience for my area.
The owner said that is one of the parameters leading to success: such tiny little things that have unsuspected effects.
For example, the deformed images encourage clicking them to see the profile. If the image was fine, that click and potential consequences may have never happened.
It feels like if you hired a "webmaster" from the mid 1990s to build you a domain parking page.
It is AWFUL.