Rotten Tomato Reviews of Saw Movies nad Paranormal Activity

For anyone who doesn't know... Rotten tomatoes is a site that compiles all critics reviews of film by stars 1-10. Anything above 6 is considered Ok or Fresh. Anything below is considered Rotten. Its bassicaly like school grades 50's and below are F's. Then they compile what percent of critics called it fresh to see what the consensus is. Below are a bunch of %'s i found.

Saw: 48: Rotten

Saw 2: 35: rotten

Saw 3:25 rotten

Saw 4 : 40 rotten

Saw 5: 13 rotten Consensus: If its plot were as interesting as its torture devices, or its violence less painful than its performances, perhaps Saw V might not feel like it was running on fumes.

Saw 6: 40 rotten

Saw 7: 13 rotten

These movies are clearly awful according to popular critics. So why do people love them?

Paranormal activity: 82: Using its low-budget effects and mockumentary method to great result, Paranormal Activity turns a simple haunted house story into 90 minutes of relentless suspense.

Paranormal activity 2: 60% : Paranormal Activity 2 doesn't cover any new ground, but its premise is still scary -- and in some respects, it's a better film than the original.

So what's this mean? Critics dont like gore? Gore is a cop out from plot? Who knows.