I review the pending memberships a couple of times a week and the new members who list websites about every week.
To explain, a “pending” member is one who has signed up, but not yet responded to the activation email. Most of the spam sites, never respond. I delete any pending membership over a few days old. I’m the only one who sees the pending members. They do not appear when ordinary mortals look at the member list.
Once a member has completed the activation, they have the option to add a web site to their profile. I take a look at these and delete the memberships of obvious spammers or those who post objectionable sites. Objectionable includes porn, cheap pharmaceuticals, cheap cigarettes, etc. I don’t delete web listings that are merely commercial. Lots of members list the web sites for their legitimate businesses in their profile and that’s fine. (Posting spam about those businesses in the discussion forum itself would merit banning, but simply listing them in one’s profile is fine.)
The dating service fell into this category. A bit unusual as most such sites never respond to the activation email. This was borderline as it wasn’t actually a porn site, but I deleted them anyway--so they won’t appear if you look now. If you own the dating software site and think you’ve been unfairly deleted, email me. If there’s a human at the other end, I’ll probably let you stay.