Wiki somewhat infested by spam

I took a look at the wiki (the first time in a while) and I'm seeing there is a lot more spam activity than legitimate activity.
Without going into a long, somewhat philosophical rant, let me just say I don't believe in wikis most of the time. I think there may be a role for this tool, but its current disuse indicates a poor fit.
I'm considering some alternatives, one of which is switching to a different software package and locking out anonymous edits. Authenticated members of the forum could be granted edit privileges.
I think material in a wiki is inherently "authorless" in the sense that it is supposed to be the product of multiple authors collaborating to document a consensus view. It is perfectly appropriate for articles on physics or factual matters. For matters of opinion, such as the "right" way to handle a situation, or venue reviews, or bootcamp reviews, a critical piece of information is "according to whom?"
For things where author credibility matters, (which is most things when talking about pickup) a format that naturally records authorship makes more sense (which is basically everything except wikis).
I'm curious as to your thoughts. What would you like to see happen with the wiki?
Without going into a long, somewhat philosophical rant, let me just say I don't believe in wikis most of the time. I think there may be a role for this tool, but its current disuse indicates a poor fit.
I'm considering some alternatives, one of which is switching to a different software package and locking out anonymous edits. Authenticated members of the forum could be granted edit privileges.
I think material in a wiki is inherently "authorless" in the sense that it is supposed to be the product of multiple authors collaborating to document a consensus view. It is perfectly appropriate for articles on physics or factual matters. For matters of opinion, such as the "right" way to handle a situation, or venue reviews, or bootcamp reviews, a critical piece of information is "according to whom?"
For things where author credibility matters, (which is most things when talking about pickup) a format that naturally records authorship makes more sense (which is basically everything except wikis).
I'm curious as to your thoughts. What would you like to see happen with the wiki?