You spend 2 clicks to give the corp a single point of bad publicity as well as forfeit an agenda.

This sets you back quite a few credits depending on how many you spent to gain the agenda you trashed. Even if you acquired the agenda for free you are still behind 3 credits. The 1 to play the card and the 2 you lost for the credits you could have clicked for. This means you need to make a minimum of 3 runs before the card is essentially paid for in the best situation.

If you have already scored 6 points (one of them is a one-pointer) and you know all they have left is two pointers?

In which case, why not just make two runs and clean house?

Yeah....until the card pool expands, I don't see a point. Hell Data Dealer is better than this.

Wait until the end of Spin - I expect BadPub to get very versatile. Hell, just look at Blackmail - that's a hell of a good card, especially if you're running a rez-denial deck (planning a Reina Roja deck focused around this).