I hereby nominate categories and tabs as the most neglected stepchild record in all of NetSuite history.  In the last 12 or so years that I've been using NetSuite, I can think of one update that affected website categories -  about 5 years ago, we finally got the privilege of being able to search them. The searching is terribly lacking, Only giving us access to 7 of the dozens of fields as columns or filters.

Here is a small list of the things that are unnecessarily painful when dealing with  site builder categories:
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[*]The only way to access most of the data in the record with a script is using nlapiloadrecord, the slowest and worst function available.