Yep.

The email itself is actually a call to action, it's telling you your new matches. And it's actually weekly. It looked like this before:

    Hello yournamehere,

    Thank you for signing up on MM/DD/YYYY HH:MM:SS XM.
    Remember your password is *****.

    http://www.plentyoffish.com is larger than all other free dating sites combined.

    View your latest matches here --> http://www.plentyoffish.com/viewmatches.aspx

    1. You can now easily check your messages via a cell phone.
    2. Latest signups -- > http://www.plentyoffish.com/lastsignup.aspx
    3. Users online in your city -- > http://www.plentyoffish.com/lastonlinemycity.aspx
    4. If you have found your match you can delete your account in the help menu.
    5. Read your new emails here --> http://www.plentyoffish.com/inbox.aspx
    6. Who checked out your profile? -->http://www.plentyoffish.com/whoviewedme.aspx
    7. Compatibility Test to Measure Chemistry --> http://www.plentyoffish.com/poftest.aspx

    http://www.plentyoffish.com

At some point the password line was just replaced with:

    http://www.pof.com is larger than all other free dating sites combined.

So they didn't even have to make it a login link.