That's one reason that we personally vet every signup request for the app I run.<p>One of the services that we offer, is users being able to (anonymously) reach out to each other for help. If we have "looky-loos," or even scammers, it's not particularly good.<p>Scammers usually have no use for our app. It's really too anonymous and locked-down, and our users tend to be fairly poor (and scammer-wise -some are even reformed scammers). Faecesbook is a <i>much</i> richer hunting ground. They may sign in once (if they were able to get us to admit them, which takes a bit of work), and then never come back. Some of them never log in, because they don't actually look at their emails. If they never log in, then we delete the account after 30 days.<p>Looky-loos, on the other hand, are a pain in the ass, because they will log in once, peer around, realize the app has nothing for them, and never come back. We need to wait a year to delete their account.<p>We absolutely don't care about scale. We may never have more than a few thousand users. We haven't even reached 1,000, and it's been a year. I tested the app with 12,000 fake users, so it can handle that.