Since I have a list of ALL current subscribers, I'm checking the names against a Google search where that same name had been used to login to a different website. Since people tend to use the same password for multiple sites, I then try the password on this particular website (or a similar website) and it often works.
The above username/password combination had been previously used at Welcome!
, but it no longer works there.
Since there is a current subscriber named chromepipe at asiansexdiary.com, I tried the password, and it worked!
HOWEVER, if it is used from 5 different IP addresses in a 24 hour period, it'll get killed. So hurry.