I propose we add some of the [wordpress-*] tags of Stack Overflow as synonyms on our site, to ease question migrations. Questions tagged [wordpress] [wordpress-plugin-dev] lose all their tags as [wordpress] is blacklisted and [wordpress-plugin-dev] does not exist here - but [plugin-development] does.
We should check whether tag synonyms are applied on question migration, but if they are, adding these synonyms could reduce the number of [untagged] questions, while having no negative side-effects on our site (since they don't add new tags, they only map to existing ones).
