I tried it in one of the weeks when I had that as a weekly task. I think I was allied with the faction at first, and found myself right down in the unfriendly zone by the time I had finished (relogging to reactivate the ads, coughOn the other hand, it would be nice to have a better grip on exactly how much hacking those ads will cost me in reputation, because it's pretty much a guaranteed source of undermining merits. It's quite the quandary, which IMO is a good thing.
This is something I've been a bit puzzled about but have yet to actively test.My only real complaint about PowerPlay 2.0, besides the still disabled activities, is that relative to Reinforcement, Undermining is both much less efficient, and much less rewarding.
I don't fully understand what the idea is behind the SSP (the BFP makes more sense, loosely speaking). However, taking for granted that penalties exist for undermining, it still makes little sense to me that the control points earned from an action AND the personal merits earned from that action BOTH need to be nerfed by those penalties. Have I got that right? It would be more rewarding if the personal merits were untouched by the penalties, though obviously doing the actual undermining would still be a slog.