Notification when large amounts of links are being sent

possible for sure, but is spam in conversations such a big problem ?
In my forums there is nearly no spam in conversations as this content is not public, instead they spam in their profile the about me content...

Perhaps, rather than storing information and deciding what constitutes spam, the plugin could have the user enter a captcha for posts or messages until they have at least X posts. I didn't see this in the anti-spam section, but I don't think it'd be terribly hard to create.

Alternatively, perhaps a plugin could be made that allows the users to do the work of censoring not only spam, but troublesome users. The basic function would be that a forum member marks another member as a spammer or a trouble maker. If enough members do this, the effected member would be "silenced" until a moderator has the chance to deal with whatever the trouble is. With a bit more advancement, some users could have more weight than others when determining how many "votes" it takes to "silence" a member, perhaps tied in with the points system already present in Burning Board (StackOverflow works alot like this). As with any community driven system, it'd probably be abusable by parties inclined to do so. It'd be tricky to do well and to prevent abuse, but it'd be valuable if done well. I'm rather interested in this idea now, I might need to look more into it...

Thinking more about it, I think it'd be best if only the "votes" that went into a decision were considered, rather than general forum points. The moderator eventually has to come along and decide what should be done. So, once they decided, they'd add or subtract "weight" from the reporter(s) of the item. If it was a legitimate report, the member gains weight (starting at very low, say 1). Illegitimate reports remove weight. With this scenario, you could set a total "weight" that has to be achieved before a member is "silenced". Does this already exist? This should totally exist.

Have a look at this plugin:

One can track basically a lot of features from the WCF and some applications.
Maybe @UdoZ can even add the tracker:
"Sent conversations"

Quote from Throwholics

Maybe @UdoZ can even add the tracker:
"Sent conversations"

It's already included. But it doesn't analyze the content of a conversation.

Even better
I did not read it properly.

So basically one can track trolls and see hwo many messages are sent out