Is porn ok?
I like it! Really, what's the harm? As long as the models (women, in my case) are posing/performing voluntarily, and are getting paid for it, why should it be considered any differently than any other marketable product?

Is veganism a good idea?
Not for me! I'm a meat and potatoes man! Vegetables are what REAL food eats.

Is it ok to show shocking pictures of reality in the interest of getting attention to your cause?
Why not? It may attract some people to your cause, and it may drive some away. I doubt it would have any real effect overall.

Is it ok to mix porn with animal abuse in order to 1) get people attracted to the site? 2) 'lure' them into seeing the reality of animal industry by so doing?
Personally I think it's stupid. Those who are disturbed by animal abuse are not going to go to the site. Those who are not disturbed will ignore it. I think PETA is wasting its money on this, money which they could probably use to better advantage elsewhere. But, none of it is MY money, so I don't give a damn.