...so i'd like to know what are we supposed to do!!!!!!! Is there any kind of security that can detect scripts or something, I know i have one for weapons..I cant turn scripts off, since I run a club, so that's not an option.
There are a few options.
First, yes, you CAN turn off scripts for your club - you can selectively turn off scripts for visitors while leaving the scripts owned by the club fully operational. Dance balls, lighting, tip jars and all that stuff will still work fine. It's the raiders scripts that won't work.
You can also turn off build and object entry, and even if you left scripts completely on, this would stop a great deal of the griefing right there. Most griefing depends on being able to rez new objects.
If your club is not on an island estate, your options are more limited. Chances are good you won't have complete control over an entire sim, and so any parcel in the sim that has build enabled is all the griefers need to crash the sim if that's what they're interested in doing.
There are more kinds of griefers than just the hardened career griefer type like the PN. For the ones who are just generally walking rectums, you can defend your club via SLBanlink (http://www.slbanlink.com. This is a free trusted peer banlist system.
You subscribe to other people's banlists, and if a griefer is banned in one place, they'll find themselves banned from a few hundred others automatically. This reduces the fun level for the griefer by quite a lot. If somebody files false ban reports, they quickly become deemed untrustworthy as peers, and people unsubscribe to their lists. This neatly sidesteps the "who guards the guards" problem other systems suffer from. The authority to ban does not ultimately rest with one person or group. It's noteworthy, by the way, that the ones who complain most vociferously about BanLink are also griefers themselves in some cases, so it's a sign that the system works well.
Filing abuse reports against griefers does work. If the Governance and Response Team sees a number of abuse reports against a particular individual within a short period of time, they notice this as significant and take quick action. Sometimes the response time is measured in mere minutes.