In other words, it is a good idea.
Syntactically, it is appropriate to map from the 'keywords' headers
in News: traffic to the 'keywords' META tag in HTML.
There are policy pitfalls for faqs.org to serve as a cataloguer and
apply keywords other than what the author said. Consider the PICS
wars.
Your list is better than what people have been using, but even better
would be to nurse out of the search-engine-operating community some
suggestions of vocabulary that they feel is useful in terms of
dividing
a) all the available web content, and
b) all the queries that search customers pose
into roughly equal fragments. It is not a problem if there are a
few keywords that everyone uses. What matter should be that most
every document gets some keyword or another that tends to set it
apart from the bulk of the Web.
Al Gilman