I'm noticing that there are a fair number of duplicate tags, which is surprising considering you need a really high rep to create tags - I would have thought users would know better.
For example, there are 17 articles with "action" and 7 with "actions" as their tags. This just dilutes the knowledgebase IMHO. Unless there's a really specific reason to disambiguate between the two (I suppose a case could be made in this instance that "action" would be appropriate for a question relating to a specific action hook, whereas "actions" would be relating to the collection of action hooks in general). Regardless, a poster might not be aware of these specifics and would just choose arbitrarily.
What can be done? Is there a feature for mods to consolidate tags? Or re-assign? How can I help (my rep is pitiful here)?