[ghba66]

Said by @ssxio, the guy who built tweeklyfm, a site that would post your weekly lastfm stats to your twitter account... and then follow him without your permission or knowledge.

This is, he took your private information (your Twitter authorisation keys) and used it without your consent to do something shady (follow someone you don't know to inflate his follower numbers).

[jfktrey]

Definitely a somewhat shady thing to do. To play devil’s advocate, though, I would argue that inflating your follow numbers is less “evil” than building a machine that takes in user data and spits out profit.